Tow Hooks for 01 TJ
02-28-2004, 06:42 PM
#11
Guest
Posts: n/a
Re: Tow Hooks for 01 TJ
"David C. Moller" <dmoller@verizon.net> wrote in message
news:9ou1405v7mbhnqf6e7o1cfd89d79qrg0jv@4ax.com...
> Well, for starters, I'd go pick up some grade 8 bolts (not the 5's
> that came with the hooks). Make sure they match the thread of the
> originals, too.
All the people that I have talked to at our local club and auto shops
prefer to use grade 5 bolts for automotive application because they are
more likely to bend rather than break under stress like grade 8. That was
the main reason why I was sticking with grade 5. I think the reasoning is
also that if I am putting enough stress on the frame/tow strap/winch to
damage a grade 5 bolt, I am likely to break something else, meaning more
expensive part, before the grade 8 bolt gives. Can you enlighten me with
why you prefer grade 8? May be you know something that I might not have
thought about. Thanks.
> The original torx bolts aren't going to be long enough to use with the
> hooks, so it doesn't really matter what their rating is I guess
> (although I doubt they are even grade 5).
> No, no nuts on the factory bolts.
Thanks. I'll just have to wait for the weather to clear a little. I guess
I can keep the factory bolts for spares to be used somewhere else on the
TJ.
> Don't know if you can install the rear tow hooks to the bottom of the
> frame (pointing down). I thought it would decrease my departure angle
> (as you mentioned) so I didn't go that route. I *think* I may have
> read somewhere that you shouldn't drill into the bottom of a frame
> though? I'm not sure.
>
> Dave
> http://mysite.verizon.net/res0p2es/david/index.htm
>
I guess that does make sense because the frame is rectangular (more in
height than width) rather than square. Therefore, drilling a hole in the
bottom could weaken it. I have put the tow hook in place by hand and
judging by the lines, it does not seem to alter the departure angle if I
install them facing down. Beside if I had bought OEM rear hooks (pricey),
they are installed on existing holes facing downward without altering
departure angle. The gas tank seems to take care of the that. I am still
waiting for the rain to stop so that I can experiment ( I don't have a
covered garage).
Thanks
TW
news:9ou1405v7mbhnqf6e7o1cfd89d79qrg0jv@4ax.com...
> Well, for starters, I'd go pick up some grade 8 bolts (not the 5's
> that came with the hooks). Make sure they match the thread of the
> originals, too.
All the people that I have talked to at our local club and auto shops
prefer to use grade 5 bolts for automotive application because they are
more likely to bend rather than break under stress like grade 8. That was
the main reason why I was sticking with grade 5. I think the reasoning is
also that if I am putting enough stress on the frame/tow strap/winch to
damage a grade 5 bolt, I am likely to break something else, meaning more
expensive part, before the grade 8 bolt gives. Can you enlighten me with
why you prefer grade 8? May be you know something that I might not have
thought about. Thanks.
> The original torx bolts aren't going to be long enough to use with the
> hooks, so it doesn't really matter what their rating is I guess
> (although I doubt they are even grade 5).
> No, no nuts on the factory bolts.
Thanks. I'll just have to wait for the weather to clear a little. I guess
I can keep the factory bolts for spares to be used somewhere else on the
TJ.
> Don't know if you can install the rear tow hooks to the bottom of the
> frame (pointing down). I thought it would decrease my departure angle
> (as you mentioned) so I didn't go that route. I *think* I may have
> read somewhere that you shouldn't drill into the bottom of a frame
> though? I'm not sure.
>
> Dave
> http://mysite.verizon.net/res0p2es/david/index.htm
>
I guess that does make sense because the frame is rectangular (more in
height than width) rather than square. Therefore, drilling a hole in the
bottom could weaken it. I have put the tow hook in place by hand and
judging by the lines, it does not seem to alter the departure angle if I
install them facing down. Beside if I had bought OEM rear hooks (pricey),
they are installed on existing holes facing downward without altering
departure angle. The gas tank seems to take care of the that. I am still
waiting for the rain to stop so that I can experiment ( I don't have a
covered garage).
Thanks
TW
02-28-2004, 06:42 PM
#12
Guest
Posts: n/a
Re: Tow Hooks for 01 TJ
"David C. Moller" <dmoller@verizon.net> wrote in message
news:9ou1405v7mbhnqf6e7o1cfd89d79qrg0jv@4ax.com...
> Well, for starters, I'd go pick up some grade 8 bolts (not the 5's
> that came with the hooks). Make sure they match the thread of the
> originals, too.
All the people that I have talked to at our local club and auto shops
prefer to use grade 5 bolts for automotive application because they are
more likely to bend rather than break under stress like grade 8. That was
the main reason why I was sticking with grade 5. I think the reasoning is
also that if I am putting enough stress on the frame/tow strap/winch to
damage a grade 5 bolt, I am likely to break something else, meaning more
expensive part, before the grade 8 bolt gives. Can you enlighten me with
why you prefer grade 8? May be you know something that I might not have
thought about. Thanks.
> The original torx bolts aren't going to be long enough to use with the
> hooks, so it doesn't really matter what their rating is I guess
> (although I doubt they are even grade 5).
> No, no nuts on the factory bolts.
Thanks. I'll just have to wait for the weather to clear a little. I guess
I can keep the factory bolts for spares to be used somewhere else on the
TJ.
> Don't know if you can install the rear tow hooks to the bottom of the
> frame (pointing down). I thought it would decrease my departure angle
> (as you mentioned) so I didn't go that route. I *think* I may have
> read somewhere that you shouldn't drill into the bottom of a frame
> though? I'm not sure.
>
> Dave
> http://mysite.verizon.net/res0p2es/david/index.htm
>
I guess that does make sense because the frame is rectangular (more in
height than width) rather than square. Therefore, drilling a hole in the
bottom could weaken it. I have put the tow hook in place by hand and
judging by the lines, it does not seem to alter the departure angle if I
install them facing down. Beside if I had bought OEM rear hooks (pricey),
they are installed on existing holes facing downward without altering
departure angle. The gas tank seems to take care of the that. I am still
waiting for the rain to stop so that I can experiment ( I don't have a
covered garage).
Thanks
TW
news:9ou1405v7mbhnqf6e7o1cfd89d79qrg0jv@4ax.com...
> Well, for starters, I'd go pick up some grade 8 bolts (not the 5's
> that came with the hooks). Make sure they match the thread of the
> originals, too.
All the people that I have talked to at our local club and auto shops
prefer to use grade 5 bolts for automotive application because they are
more likely to bend rather than break under stress like grade 8. That was
the main reason why I was sticking with grade 5. I think the reasoning is
also that if I am putting enough stress on the frame/tow strap/winch to
damage a grade 5 bolt, I am likely to break something else, meaning more
expensive part, before the grade 8 bolt gives. Can you enlighten me with
why you prefer grade 8? May be you know something that I might not have
thought about. Thanks.
> The original torx bolts aren't going to be long enough to use with the
> hooks, so it doesn't really matter what their rating is I guess
> (although I doubt they are even grade 5).
> No, no nuts on the factory bolts.
Thanks. I'll just have to wait for the weather to clear a little. I guess
I can keep the factory bolts for spares to be used somewhere else on the
TJ.
> Don't know if you can install the rear tow hooks to the bottom of the
> frame (pointing down). I thought it would decrease my departure angle
> (as you mentioned) so I didn't go that route. I *think* I may have
> read somewhere that you shouldn't drill into the bottom of a frame
> though? I'm not sure.
>
> Dave
> http://mysite.verizon.net/res0p2es/david/index.htm
>
I guess that does make sense because the frame is rectangular (more in
height than width) rather than square. Therefore, drilling a hole in the
bottom could weaken it. I have put the tow hook in place by hand and
judging by the lines, it does not seem to alter the departure angle if I
install them facing down. Beside if I had bought OEM rear hooks (pricey),
they are installed on existing holes facing downward without altering
departure angle. The gas tank seems to take care of the that. I am still
waiting for the rain to stop so that I can experiment ( I don't have a
covered garage).
Thanks
TW
02-28-2004, 06:42 PM
#13
Guest
Posts: n/a
Re: Tow Hooks for 01 TJ
"David C. Moller" <dmoller@verizon.net> wrote in message
news:9ou1405v7mbhnqf6e7o1cfd89d79qrg0jv@4ax.com...
> Well, for starters, I'd go pick up some grade 8 bolts (not the 5's
> that came with the hooks). Make sure they match the thread of the
> originals, too.
All the people that I have talked to at our local club and auto shops
prefer to use grade 5 bolts for automotive application because they are
more likely to bend rather than break under stress like grade 8. That was
the main reason why I was sticking with grade 5. I think the reasoning is
also that if I am putting enough stress on the frame/tow strap/winch to
damage a grade 5 bolt, I am likely to break something else, meaning more
expensive part, before the grade 8 bolt gives. Can you enlighten me with
why you prefer grade 8? May be you know something that I might not have
thought about. Thanks.
> The original torx bolts aren't going to be long enough to use with the
> hooks, so it doesn't really matter what their rating is I guess
> (although I doubt they are even grade 5).
> No, no nuts on the factory bolts.
Thanks. I'll just have to wait for the weather to clear a little. I guess
I can keep the factory bolts for spares to be used somewhere else on the
TJ.
> Don't know if you can install the rear tow hooks to the bottom of the
> frame (pointing down). I thought it would decrease my departure angle
> (as you mentioned) so I didn't go that route. I *think* I may have
> read somewhere that you shouldn't drill into the bottom of a frame
> though? I'm not sure.
>
> Dave
> http://mysite.verizon.net/res0p2es/david/index.htm
>
I guess that does make sense because the frame is rectangular (more in
height than width) rather than square. Therefore, drilling a hole in the
bottom could weaken it. I have put the tow hook in place by hand and
judging by the lines, it does not seem to alter the departure angle if I
install them facing down. Beside if I had bought OEM rear hooks (pricey),
they are installed on existing holes facing downward without altering
departure angle. The gas tank seems to take care of the that. I am still
waiting for the rain to stop so that I can experiment ( I don't have a
covered garage).
Thanks
TW
news:9ou1405v7mbhnqf6e7o1cfd89d79qrg0jv@4ax.com...
> Well, for starters, I'd go pick up some grade 8 bolts (not the 5's
> that came with the hooks). Make sure they match the thread of the
> originals, too.
All the people that I have talked to at our local club and auto shops
prefer to use grade 5 bolts for automotive application because they are
more likely to bend rather than break under stress like grade 8. That was
the main reason why I was sticking with grade 5. I think the reasoning is
also that if I am putting enough stress on the frame/tow strap/winch to
damage a grade 5 bolt, I am likely to break something else, meaning more
expensive part, before the grade 8 bolt gives. Can you enlighten me with
why you prefer grade 8? May be you know something that I might not have
thought about. Thanks.
> The original torx bolts aren't going to be long enough to use with the
> hooks, so it doesn't really matter what their rating is I guess
> (although I doubt they are even grade 5).
> No, no nuts on the factory bolts.
Thanks. I'll just have to wait for the weather to clear a little. I guess
I can keep the factory bolts for spares to be used somewhere else on the
TJ.
> Don't know if you can install the rear tow hooks to the bottom of the
> frame (pointing down). I thought it would decrease my departure angle
> (as you mentioned) so I didn't go that route. I *think* I may have
> read somewhere that you shouldn't drill into the bottom of a frame
> though? I'm not sure.
>
> Dave
> http://mysite.verizon.net/res0p2es/david/index.htm
>
I guess that does make sense because the frame is rectangular (more in
height than width) rather than square. Therefore, drilling a hole in the
bottom could weaken it. I have put the tow hook in place by hand and
judging by the lines, it does not seem to alter the departure angle if I
install them facing down. Beside if I had bought OEM rear hooks (pricey),
they are installed on existing holes facing downward without altering
departure angle. The gas tank seems to take care of the that. I am still
waiting for the rain to stop so that I can experiment ( I don't have a
covered garage).
Thanks
TW
02-28-2004, 07:36 PM
#14
Guest
Posts: n/a
Re: Tow Hooks for 01 TJ
http://www.rockcrawler.com/techrepor...ners/index.asp
http://www.americanfastener.com/tech...ings_steel.asp
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/
TW wrote:
>
> All the people that I have talked to at our local club and auto shops
> prefer to use grade 5 bolts for automotive application because they are
> more likely to bend rather than break under stress like grade 8. That was
> the main reason why I was sticking with grade 5. I think the reasoning is
> also that if I am putting enough stress on the frame/tow strap/winch to
> damage a grade 5 bolt, I am likely to break something else, meaning more
> expensive part, before the grade 8 bolt gives. Can you enlighten me with
> why you prefer grade 8? May be you know something that I might not have
> thought about. Thanks.
>
> Thanks. I'll just have to wait for the weather to clear a little. I guess
> I can keep the factory bolts for spares to be used somewhere else on the
> TJ.
>
> I guess that does make sense because the frame is rectangular (more in
> height than width) rather than square. Therefore, drilling a hole in the
> bottom could weaken it. I have put the tow hook in place by hand and
> judging by the lines, it does not seem to alter the departure angle if I
> install them facing down. Beside if I had bought OEM rear hooks (pricey),
> they are installed on existing holes facing downward without altering
> departure angle. The gas tank seems to take care of the that. I am still
> waiting for the rain to stop so that I can experiment ( I don't have a
> covered garage).
>
> Thanks
> TW
http://www.americanfastener.com/tech...ings_steel.asp
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/
TW wrote:
>
> All the people that I have talked to at our local club and auto shops
> prefer to use grade 5 bolts for automotive application because they are
> more likely to bend rather than break under stress like grade 8. That was
> the main reason why I was sticking with grade 5. I think the reasoning is
> also that if I am putting enough stress on the frame/tow strap/winch to
> damage a grade 5 bolt, I am likely to break something else, meaning more
> expensive part, before the grade 8 bolt gives. Can you enlighten me with
> why you prefer grade 8? May be you know something that I might not have
> thought about. Thanks.
>
> Thanks. I'll just have to wait for the weather to clear a little. I guess
> I can keep the factory bolts for spares to be used somewhere else on the
> TJ.
>
> I guess that does make sense because the frame is rectangular (more in
> height than width) rather than square. Therefore, drilling a hole in the
> bottom could weaken it. I have put the tow hook in place by hand and
> judging by the lines, it does not seem to alter the departure angle if I
> install them facing down. Beside if I had bought OEM rear hooks (pricey),
> they are installed on existing holes facing downward without altering
> departure angle. The gas tank seems to take care of the that. I am still
> waiting for the rain to stop so that I can experiment ( I don't have a
> covered garage).
>
> Thanks
> TW
02-28-2004, 07:36 PM
#15
Guest
Posts: n/a
Re: Tow Hooks for 01 TJ
http://www.rockcrawler.com/techrepor...ners/index.asp
http://www.americanfastener.com/tech...ings_steel.asp
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/
TW wrote:
>
> All the people that I have talked to at our local club and auto shops
> prefer to use grade 5 bolts for automotive application because they are
> more likely to bend rather than break under stress like grade 8. That was
> the main reason why I was sticking with grade 5. I think the reasoning is
> also that if I am putting enough stress on the frame/tow strap/winch to
> damage a grade 5 bolt, I am likely to break something else, meaning more
> expensive part, before the grade 8 bolt gives. Can you enlighten me with
> why you prefer grade 8? May be you know something that I might not have
> thought about. Thanks.
>
> Thanks. I'll just have to wait for the weather to clear a little. I guess
> I can keep the factory bolts for spares to be used somewhere else on the
> TJ.
>
> I guess that does make sense because the frame is rectangular (more in
> height than width) rather than square. Therefore, drilling a hole in the
> bottom could weaken it. I have put the tow hook in place by hand and
> judging by the lines, it does not seem to alter the departure angle if I
> install them facing down. Beside if I had bought OEM rear hooks (pricey),
> they are installed on existing holes facing downward without altering
> departure angle. The gas tank seems to take care of the that. I am still
> waiting for the rain to stop so that I can experiment ( I don't have a
> covered garage).
>
> Thanks
> TW
http://www.americanfastener.com/tech...ings_steel.asp
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/
TW wrote:
>
> All the people that I have talked to at our local club and auto shops
> prefer to use grade 5 bolts for automotive application because they are
> more likely to bend rather than break under stress like grade 8. That was
> the main reason why I was sticking with grade 5. I think the reasoning is
> also that if I am putting enough stress on the frame/tow strap/winch to
> damage a grade 5 bolt, I am likely to break something else, meaning more
> expensive part, before the grade 8 bolt gives. Can you enlighten me with
> why you prefer grade 8? May be you know something that I might not have
> thought about. Thanks.
>
> Thanks. I'll just have to wait for the weather to clear a little. I guess
> I can keep the factory bolts for spares to be used somewhere else on the
> TJ.
>
> I guess that does make sense because the frame is rectangular (more in
> height than width) rather than square. Therefore, drilling a hole in the
> bottom could weaken it. I have put the tow hook in place by hand and
> judging by the lines, it does not seem to alter the departure angle if I
> install them facing down. Beside if I had bought OEM rear hooks (pricey),
> they are installed on existing holes facing downward without altering
> departure angle. The gas tank seems to take care of the that. I am still
> waiting for the rain to stop so that I can experiment ( I don't have a
> covered garage).
>
> Thanks
> TW
02-28-2004, 07:36 PM
#16
Guest
Posts: n/a
Re: Tow Hooks for 01 TJ
http://www.rockcrawler.com/techrepor...ners/index.asp
http://www.americanfastener.com/tech...ings_steel.asp
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/
TW wrote:
>
> All the people that I have talked to at our local club and auto shops
> prefer to use grade 5 bolts for automotive application because they are
> more likely to bend rather than break under stress like grade 8. That was
> the main reason why I was sticking with grade 5. I think the reasoning is
> also that if I am putting enough stress on the frame/tow strap/winch to
> damage a grade 5 bolt, I am likely to break something else, meaning more
> expensive part, before the grade 8 bolt gives. Can you enlighten me with
> why you prefer grade 8? May be you know something that I might not have
> thought about. Thanks.
>
> Thanks. I'll just have to wait for the weather to clear a little. I guess
> I can keep the factory bolts for spares to be used somewhere else on the
> TJ.
>
> I guess that does make sense because the frame is rectangular (more in
> height than width) rather than square. Therefore, drilling a hole in the
> bottom could weaken it. I have put the tow hook in place by hand and
> judging by the lines, it does not seem to alter the departure angle if I
> install them facing down. Beside if I had bought OEM rear hooks (pricey),
> they are installed on existing holes facing downward without altering
> departure angle. The gas tank seems to take care of the that. I am still
> waiting for the rain to stop so that I can experiment ( I don't have a
> covered garage).
>
> Thanks
> TW
http://www.americanfastener.com/tech...ings_steel.asp
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/
TW wrote:
>
> All the people that I have talked to at our local club and auto shops
> prefer to use grade 5 bolts for automotive application because they are
> more likely to bend rather than break under stress like grade 8. That was
> the main reason why I was sticking with grade 5. I think the reasoning is
> also that if I am putting enough stress on the frame/tow strap/winch to
> damage a grade 5 bolt, I am likely to break something else, meaning more
> expensive part, before the grade 8 bolt gives. Can you enlighten me with
> why you prefer grade 8? May be you know something that I might not have
> thought about. Thanks.
>
> Thanks. I'll just have to wait for the weather to clear a little. I guess
> I can keep the factory bolts for spares to be used somewhere else on the
> TJ.
>
> I guess that does make sense because the frame is rectangular (more in
> height than width) rather than square. Therefore, drilling a hole in the
> bottom could weaken it. I have put the tow hook in place by hand and
> judging by the lines, it does not seem to alter the departure angle if I
> install them facing down. Beside if I had bought OEM rear hooks (pricey),
> they are installed on existing holes facing downward without altering
> departure angle. The gas tank seems to take care of the that. I am still
> waiting for the rain to stop so that I can experiment ( I don't have a
> covered garage).
>
> Thanks
> TW
02-29-2004, 01:50 AM
#17
Guest
Posts: n/a
Re: Tow Hooks for 01 TJ
Personally, I went with grade 8 because I was planning on going to a
Jeep Jamboree, and they require the tow hooks to be mounted with grade
8. Never ended up going to one, because they seemed rather tame after
some investigation. The link Bill posted sums it up well I think,
where it says:
"Again, you can see that the grade 8 will support over 1000 lbs more
or a 1/2-ton more. But there’s something more important to note. The
grade 5 fastener has already reached its ultimate load and FAILED
BEFORE the grade 8 starts to yield or stretch. Therefore, the argument
that you should not use grade 8’s because they are more brittle than
grade 5’s is not a true statement in most applications."
Dave
On Sun, 29 Feb 2004 12:42:40 +1300, "TW" <a t t w @ w a v e . c o . n
z> wrote:
>"David C. Moller" <dmoller@verizon.net> wrote in message
>news:9ou1405v7mbhnqf6e7o1cfd89d79qrg0jv@4ax.com.. .
>> Well, for starters, I'd go pick up some grade 8 bolts (not the 5's
>> that came with the hooks). Make sure they match the thread of the
>> originals, too.
>
>All the people that I have talked to at our local club and auto shops
>prefer to use grade 5 bolts for automotive application because they are
>more likely to bend rather than break under stress like grade 8. That was
>the main reason why I was sticking with grade 5. I think the reasoning is
>also that if I am putting enough stress on the frame/tow strap/winch to
>damage a grade 5 bolt, I am likely to break something else, meaning more
>expensive part, before the grade 8 bolt gives. Can you enlighten me with
>why you prefer grade 8? May be you know something that I might not have
>thought about. Thanks.
>
>> The original torx bolts aren't going to be long enough to use with the
>> hooks, so it doesn't really matter what their rating is I guess
>> (although I doubt they are even grade 5).
>> No, no nuts on the factory bolts.
>
>Thanks. I'll just have to wait for the weather to clear a little. I guess
>I can keep the factory bolts for spares to be used somewhere else on the
>TJ.
>
>> Don't know if you can install the rear tow hooks to the bottom of the
>> frame (pointing down). I thought it would decrease my departure angle
>> (as you mentioned) so I didn't go that route. I *think* I may have
>> read somewhere that you shouldn't drill into the bottom of a frame
>> though? I'm not sure.
>>
>> Dave
>> http://mysite.verizon.net/res0p2es/david/index.htm
>>
>
>I guess that does make sense because the frame is rectangular (more in
>height than width) rather than square. Therefore, drilling a hole in the
>bottom could weaken it. I have put the tow hook in place by hand and
>judging by the lines, it does not seem to alter the departure angle if I
>install them facing down. Beside if I had bought OEM rear hooks (pricey),
>they are installed on existing holes facing downward without altering
>departure angle. The gas tank seems to take care of the that. I am still
>waiting for the rain to stop so that I can experiment ( I don't have a
>covered garage).
>
>Thanks
>TW
Jeep Jamboree, and they require the tow hooks to be mounted with grade
8. Never ended up going to one, because they seemed rather tame after
some investigation. The link Bill posted sums it up well I think,
where it says:
"Again, you can see that the grade 8 will support over 1000 lbs more
or a 1/2-ton more. But there’s something more important to note. The
grade 5 fastener has already reached its ultimate load and FAILED
BEFORE the grade 8 starts to yield or stretch. Therefore, the argument
that you should not use grade 8’s because they are more brittle than
grade 5’s is not a true statement in most applications."
Dave
On Sun, 29 Feb 2004 12:42:40 +1300, "TW" <a t t w @ w a v e . c o . n
z> wrote:
>"David C. Moller" <dmoller@verizon.net> wrote in message
>news:9ou1405v7mbhnqf6e7o1cfd89d79qrg0jv@4ax.com.. .
>> Well, for starters, I'd go pick up some grade 8 bolts (not the 5's
>> that came with the hooks). Make sure they match the thread of the
>> originals, too.
>
>All the people that I have talked to at our local club and auto shops
>prefer to use grade 5 bolts for automotive application because they are
>more likely to bend rather than break under stress like grade 8. That was
>the main reason why I was sticking with grade 5. I think the reasoning is
>also that if I am putting enough stress on the frame/tow strap/winch to
>damage a grade 5 bolt, I am likely to break something else, meaning more
>expensive part, before the grade 8 bolt gives. Can you enlighten me with
>why you prefer grade 8? May be you know something that I might not have
>thought about. Thanks.
>
>> The original torx bolts aren't going to be long enough to use with the
>> hooks, so it doesn't really matter what their rating is I guess
>> (although I doubt they are even grade 5).
>> No, no nuts on the factory bolts.
>
>Thanks. I'll just have to wait for the weather to clear a little. I guess
>I can keep the factory bolts for spares to be used somewhere else on the
>TJ.
>
>> Don't know if you can install the rear tow hooks to the bottom of the
>> frame (pointing down). I thought it would decrease my departure angle
>> (as you mentioned) so I didn't go that route. I *think* I may have
>> read somewhere that you shouldn't drill into the bottom of a frame
>> though? I'm not sure.
>>
>> Dave
>> http://mysite.verizon.net/res0p2es/david/index.htm
>>
>
>I guess that does make sense because the frame is rectangular (more in
>height than width) rather than square. Therefore, drilling a hole in the
>bottom could weaken it. I have put the tow hook in place by hand and
>judging by the lines, it does not seem to alter the departure angle if I
>install them facing down. Beside if I had bought OEM rear hooks (pricey),
>they are installed on existing holes facing downward without altering
>departure angle. The gas tank seems to take care of the that. I am still
>waiting for the rain to stop so that I can experiment ( I don't have a
>covered garage).
>
>Thanks
>TW
02-29-2004, 01:50 AM
#18
Guest
Posts: n/a
Re: Tow Hooks for 01 TJ
Personally, I went with grade 8 because I was planning on going to a
Jeep Jamboree, and they require the tow hooks to be mounted with grade
8. Never ended up going to one, because they seemed rather tame after
some investigation. The link Bill posted sums it up well I think,
where it says:
"Again, you can see that the grade 8 will support over 1000 lbs more
or a 1/2-ton more. But there’s something more important to note. The
grade 5 fastener has already reached its ultimate load and FAILED
BEFORE the grade 8 starts to yield or stretch. Therefore, the argument
that you should not use grade 8’s because they are more brittle than
grade 5’s is not a true statement in most applications."
Dave
On Sun, 29 Feb 2004 12:42:40 +1300, "TW" <a t t w @ w a v e . c o . n
z> wrote:
>"David C. Moller" <dmoller@verizon.net> wrote in message
>news:9ou1405v7mbhnqf6e7o1cfd89d79qrg0jv@4ax.com.. .
>> Well, for starters, I'd go pick up some grade 8 bolts (not the 5's
>> that came with the hooks). Make sure they match the thread of the
>> originals, too.
>
>All the people that I have talked to at our local club and auto shops
>prefer to use grade 5 bolts for automotive application because they are
>more likely to bend rather than break under stress like grade 8. That was
>the main reason why I was sticking with grade 5. I think the reasoning is
>also that if I am putting enough stress on the frame/tow strap/winch to
>damage a grade 5 bolt, I am likely to break something else, meaning more
>expensive part, before the grade 8 bolt gives. Can you enlighten me with
>why you prefer grade 8? May be you know something that I might not have
>thought about. Thanks.
>
>> The original torx bolts aren't going to be long enough to use with the
>> hooks, so it doesn't really matter what their rating is I guess
>> (although I doubt they are even grade 5).
>> No, no nuts on the factory bolts.
>
>Thanks. I'll just have to wait for the weather to clear a little. I guess
>I can keep the factory bolts for spares to be used somewhere else on the
>TJ.
>
>> Don't know if you can install the rear tow hooks to the bottom of the
>> frame (pointing down). I thought it would decrease my departure angle
>> (as you mentioned) so I didn't go that route. I *think* I may have
>> read somewhere that you shouldn't drill into the bottom of a frame
>> though? I'm not sure.
>>
>> Dave
>> http://mysite.verizon.net/res0p2es/david/index.htm
>>
>
>I guess that does make sense because the frame is rectangular (more in
>height than width) rather than square. Therefore, drilling a hole in the
>bottom could weaken it. I have put the tow hook in place by hand and
>judging by the lines, it does not seem to alter the departure angle if I
>install them facing down. Beside if I had bought OEM rear hooks (pricey),
>they are installed on existing holes facing downward without altering
>departure angle. The gas tank seems to take care of the that. I am still
>waiting for the rain to stop so that I can experiment ( I don't have a
>covered garage).
>
>Thanks
>TW
Jeep Jamboree, and they require the tow hooks to be mounted with grade
8. Never ended up going to one, because they seemed rather tame after
some investigation. The link Bill posted sums it up well I think,
where it says:
"Again, you can see that the grade 8 will support over 1000 lbs more
or a 1/2-ton more. But there’s something more important to note. The
grade 5 fastener has already reached its ultimate load and FAILED
BEFORE the grade 8 starts to yield or stretch. Therefore, the argument
that you should not use grade 8’s because they are more brittle than
grade 5’s is not a true statement in most applications."
Dave
On Sun, 29 Feb 2004 12:42:40 +1300, "TW" <a t t w @ w a v e . c o . n
z> wrote:
>"David C. Moller" <dmoller@verizon.net> wrote in message
>news:9ou1405v7mbhnqf6e7o1cfd89d79qrg0jv@4ax.com.. .
>> Well, for starters, I'd go pick up some grade 8 bolts (not the 5's
>> that came with the hooks). Make sure they match the thread of the
>> originals, too.
>
>All the people that I have talked to at our local club and auto shops
>prefer to use grade 5 bolts for automotive application because they are
>more likely to bend rather than break under stress like grade 8. That was
>the main reason why I was sticking with grade 5. I think the reasoning is
>also that if I am putting enough stress on the frame/tow strap/winch to
>damage a grade 5 bolt, I am likely to break something else, meaning more
>expensive part, before the grade 8 bolt gives. Can you enlighten me with
>why you prefer grade 8? May be you know something that I might not have
>thought about. Thanks.
>
>> The original torx bolts aren't going to be long enough to use with the
>> hooks, so it doesn't really matter what their rating is I guess
>> (although I doubt they are even grade 5).
>> No, no nuts on the factory bolts.
>
>Thanks. I'll just have to wait for the weather to clear a little. I guess
>I can keep the factory bolts for spares to be used somewhere else on the
>TJ.
>
>> Don't know if you can install the rear tow hooks to the bottom of the
>> frame (pointing down). I thought it would decrease my departure angle
>> (as you mentioned) so I didn't go that route. I *think* I may have
>> read somewhere that you shouldn't drill into the bottom of a frame
>> though? I'm not sure.
>>
>> Dave
>> http://mysite.verizon.net/res0p2es/david/index.htm
>>
>
>I guess that does make sense because the frame is rectangular (more in
>height than width) rather than square. Therefore, drilling a hole in the
>bottom could weaken it. I have put the tow hook in place by hand and
>judging by the lines, it does not seem to alter the departure angle if I
>install them facing down. Beside if I had bought OEM rear hooks (pricey),
>they are installed on existing holes facing downward without altering
>departure angle. The gas tank seems to take care of the that. I am still
>waiting for the rain to stop so that I can experiment ( I don't have a
>covered garage).
>
>Thanks
>TW
02-29-2004, 01:50 AM
#19
Guest
Posts: n/a
Re: Tow Hooks for 01 TJ
Personally, I went with grade 8 because I was planning on going to a
Jeep Jamboree, and they require the tow hooks to be mounted with grade
8. Never ended up going to one, because they seemed rather tame after
some investigation. The link Bill posted sums it up well I think,
where it says:
"Again, you can see that the grade 8 will support over 1000 lbs more
or a 1/2-ton more. But there’s something more important to note. The
grade 5 fastener has already reached its ultimate load and FAILED
BEFORE the grade 8 starts to yield or stretch. Therefore, the argument
that you should not use grade 8’s because they are more brittle than
grade 5’s is not a true statement in most applications."
Dave
On Sun, 29 Feb 2004 12:42:40 +1300, "TW" <a t t w @ w a v e . c o . n
z> wrote:
>"David C. Moller" <dmoller@verizon.net> wrote in message
>news:9ou1405v7mbhnqf6e7o1cfd89d79qrg0jv@4ax.com.. .
>> Well, for starters, I'd go pick up some grade 8 bolts (not the 5's
>> that came with the hooks). Make sure they match the thread of the
>> originals, too.
>
>All the people that I have talked to at our local club and auto shops
>prefer to use grade 5 bolts for automotive application because they are
>more likely to bend rather than break under stress like grade 8. That was
>the main reason why I was sticking with grade 5. I think the reasoning is
>also that if I am putting enough stress on the frame/tow strap/winch to
>damage a grade 5 bolt, I am likely to break something else, meaning more
>expensive part, before the grade 8 bolt gives. Can you enlighten me with
>why you prefer grade 8? May be you know something that I might not have
>thought about. Thanks.
>
>> The original torx bolts aren't going to be long enough to use with the
>> hooks, so it doesn't really matter what their rating is I guess
>> (although I doubt they are even grade 5).
>> No, no nuts on the factory bolts.
>
>Thanks. I'll just have to wait for the weather to clear a little. I guess
>I can keep the factory bolts for spares to be used somewhere else on the
>TJ.
>
>> Don't know if you can install the rear tow hooks to the bottom of the
>> frame (pointing down). I thought it would decrease my departure angle
>> (as you mentioned) so I didn't go that route. I *think* I may have
>> read somewhere that you shouldn't drill into the bottom of a frame
>> though? I'm not sure.
>>
>> Dave
>> http://mysite.verizon.net/res0p2es/david/index.htm
>>
>
>I guess that does make sense because the frame is rectangular (more in
>height than width) rather than square. Therefore, drilling a hole in the
>bottom could weaken it. I have put the tow hook in place by hand and
>judging by the lines, it does not seem to alter the departure angle if I
>install them facing down. Beside if I had bought OEM rear hooks (pricey),
>they are installed on existing holes facing downward without altering
>departure angle. The gas tank seems to take care of the that. I am still
>waiting for the rain to stop so that I can experiment ( I don't have a
>covered garage).
>
>Thanks
>TW
Jeep Jamboree, and they require the tow hooks to be mounted with grade
8. Never ended up going to one, because they seemed rather tame after
some investigation. The link Bill posted sums it up well I think,
where it says:
"Again, you can see that the grade 8 will support over 1000 lbs more
or a 1/2-ton more. But there’s something more important to note. The
grade 5 fastener has already reached its ultimate load and FAILED
BEFORE the grade 8 starts to yield or stretch. Therefore, the argument
that you should not use grade 8’s because they are more brittle than
grade 5’s is not a true statement in most applications."
Dave
On Sun, 29 Feb 2004 12:42:40 +1300, "TW" <a t t w @ w a v e . c o . n
z> wrote:
>"David C. Moller" <dmoller@verizon.net> wrote in message
>news:9ou1405v7mbhnqf6e7o1cfd89d79qrg0jv@4ax.com.. .
>> Well, for starters, I'd go pick up some grade 8 bolts (not the 5's
>> that came with the hooks). Make sure they match the thread of the
>> originals, too.
>
>All the people that I have talked to at our local club and auto shops
>prefer to use grade 5 bolts for automotive application because they are
>more likely to bend rather than break under stress like grade 8. That was
>the main reason why I was sticking with grade 5. I think the reasoning is
>also that if I am putting enough stress on the frame/tow strap/winch to
>damage a grade 5 bolt, I am likely to break something else, meaning more
>expensive part, before the grade 8 bolt gives. Can you enlighten me with
>why you prefer grade 8? May be you know something that I might not have
>thought about. Thanks.
>
>> The original torx bolts aren't going to be long enough to use with the
>> hooks, so it doesn't really matter what their rating is I guess
>> (although I doubt they are even grade 5).
>> No, no nuts on the factory bolts.
>
>Thanks. I'll just have to wait for the weather to clear a little. I guess
>I can keep the factory bolts for spares to be used somewhere else on the
>TJ.
>
>> Don't know if you can install the rear tow hooks to the bottom of the
>> frame (pointing down). I thought it would decrease my departure angle
>> (as you mentioned) so I didn't go that route. I *think* I may have
>> read somewhere that you shouldn't drill into the bottom of a frame
>> though? I'm not sure.
>>
>> Dave
>> http://mysite.verizon.net/res0p2es/david/index.htm
>>
>
>I guess that does make sense because the frame is rectangular (more in
>height than width) rather than square. Therefore, drilling a hole in the
>bottom could weaken it. I have put the tow hook in place by hand and
>judging by the lines, it does not seem to alter the departure angle if I
>install them facing down. Beside if I had bought OEM rear hooks (pricey),
>they are installed on existing holes facing downward without altering
>departure angle. The gas tank seems to take care of the that. I am still
>waiting for the rain to stop so that I can experiment ( I don't have a
>covered garage).
>
>Thanks
>TW
02-29-2004, 04:07 AM
#20
Guest
Posts: n/a
Re: Tow Hooks for 01 TJ
"L.W. (ßill) ------ III" <----------@***.net> wrote in message
news:404133F9.81D8560E@***.net...
> http://www.rockcrawler.com/techrepor...ners/index.asp
> http://www.americanfastener.com/tech...ings_steel.asp
> God Bless America, ßill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
Thanks Bill. I have just checked the factory bolts and they have three
marks, thus grade 5. I think I'll stick to grade 8 bolts, now finding them
will be tomorrow's task.
Cheers,
TW
news:404133F9.81D8560E@***.net...
> http://www.rockcrawler.com/techrepor...ners/index.asp
> http://www.americanfastener.com/tech...ings_steel.asp
> God Bless America, ßill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
Thanks Bill. I have just checked the factory bolts and they have three
marks, thus grade 5. I think I'll stick to grade 8 bolts, now finding them
will be tomorrow's task.
Cheers,
TW
