Re: Bumper-mounted trailer hitch bracket for Jeep Wrangler TJ
Richard, in your article you make a point of saying "I used Grade 5 bolts
since ungraded hardware is not suitable for load-bearing applications. " You do realize that the bumper you are attaching to is only 3/32" thick and is not rated for load bearing applications....... This is somewhat of a contradiction don't you think? Tom "Richard J Kinch" <kinch@truetex.com> wrote in message news:Xns9756BE3F3DDE8someconundrum@216.196.97.131. .. > Grumman-581 writes: > > > Perhaps his next project should be to design a real bumper for his TJ .... > > Bad idea. Bumpers are weaker than the frame so they absorb impact energy > instead of bending the frame. You put a heavy bumper (or a frame hitch for > that matter) on the back of your car, and many collisions are going to > result in frame damage that would have just been a simple bolt-on swap of a > new bumper. > > On a previous rear-ended TJ I was able to replace a crunched back bumper > with a $25 OEM item from eBay (surplus to somebody's aftermarket upgrade) > with hand tools. The other guy had $1000s in damage. > > I wonder if people buying all those macho aftermarket bumpers understand > that they've *given up* a lot of their crash protection? |
Re: Bumper-mounted trailer hitch bracket for Jeep Wrangler TJ
Richard, in your article you make a point of saying "I used Grade 5 bolts
since ungraded hardware is not suitable for load-bearing applications. " You do realize that the bumper you are attaching to is only 3/32" thick and is not rated for load bearing applications....... This is somewhat of a contradiction don't you think? Tom "Richard J Kinch" <kinch@truetex.com> wrote in message news:Xns9756BE3F3DDE8someconundrum@216.196.97.131. .. > Grumman-581 writes: > > > Perhaps his next project should be to design a real bumper for his TJ .... > > Bad idea. Bumpers are weaker than the frame so they absorb impact energy > instead of bending the frame. You put a heavy bumper (or a frame hitch for > that matter) on the back of your car, and many collisions are going to > result in frame damage that would have just been a simple bolt-on swap of a > new bumper. > > On a previous rear-ended TJ I was able to replace a crunched back bumper > with a $25 OEM item from eBay (surplus to somebody's aftermarket upgrade) > with hand tools. The other guy had $1000s in damage. > > I wonder if people buying all those macho aftermarket bumpers understand > that they've *given up* a lot of their crash protection? |
Re: Bumper-mounted trailer hitch bracket for Jeep Wrangler TJ
Thanks,
But the real question is when will this one be ready (lol) I have been working on it when I get breaks at work and so far it has taken me about 6 months. I still have to do the safety tow plate under the hitch and all the mounting brackets. Even as sturdy as this one is I am concerned about towing my trailer with it and it is made out of 1/4" x 3" x 4" rectangular tubing with 1/4" mounting brackets to the frame rails. This thing Richard has come up with is mounted to a piece of sheet metal that is only 3/32" thick........Glad I don't live in Florida...... Richard, please don't think that I am flaming you.....I am just concerned about the people behind you.....Remember that one ounce of prevention is worth a pound of cure..... Tom "twaldron" <thomasOBVIOUS@rubicons.com> wrote in message news:edidnYLMILUCd0renZ2dnUVZ_tOdnZ2d@comcast.com. .. > Very nice job...but the question is, when will _mine_ be ready? ;) > __________________________________________________ ___________________ > 2003 TJ Rubicon * 2001 XJ Sport * 1971 Bill Stroppe Baja Bronco > > "There is a very fine line between 'hobby' and 'mental illness'." > > Pronunciation: 'jEp Function: noun Date: 1940 > > Etymology: from g. p. (G= 'Government' P= '80 inch wheelbase') > A small general-purpose motor vehicle with 80" wheelbase, 1/4-ton > capacity and four-wheel drive used by the U.S. army in World War II. > __________________________________________________ ___________________ > > cantrelm wrote: > > That is what I am doing. Making my own swing arm bumper, with a 2" hitch > > receiver in the middle of the bumper tube..... These pictures don't have the > > hitch cut and welded in yet, but it will be dead center of the main bumper. > > The whole thing will bolt to the frame rails where my current hitch bolts > > now and also use the crossmember mounts that the standard bumper has. > > http://www.cantrell.com/scrap/bump1.jpg > > http://www.cantrell.com/scrap/bump2.jpg > > I am putting a hi-lift jack mount on there also. > > > > Tom |
Re: Bumper-mounted trailer hitch bracket for Jeep Wrangler TJ
Thanks,
But the real question is when will this one be ready (lol) I have been working on it when I get breaks at work and so far it has taken me about 6 months. I still have to do the safety tow plate under the hitch and all the mounting brackets. Even as sturdy as this one is I am concerned about towing my trailer with it and it is made out of 1/4" x 3" x 4" rectangular tubing with 1/4" mounting brackets to the frame rails. This thing Richard has come up with is mounted to a piece of sheet metal that is only 3/32" thick........Glad I don't live in Florida...... Richard, please don't think that I am flaming you.....I am just concerned about the people behind you.....Remember that one ounce of prevention is worth a pound of cure..... Tom "twaldron" <thomasOBVIOUS@rubicons.com> wrote in message news:edidnYLMILUCd0renZ2dnUVZ_tOdnZ2d@comcast.com. .. > Very nice job...but the question is, when will _mine_ be ready? ;) > __________________________________________________ ___________________ > 2003 TJ Rubicon * 2001 XJ Sport * 1971 Bill Stroppe Baja Bronco > > "There is a very fine line between 'hobby' and 'mental illness'." > > Pronunciation: 'jEp Function: noun Date: 1940 > > Etymology: from g. p. (G= 'Government' P= '80 inch wheelbase') > A small general-purpose motor vehicle with 80" wheelbase, 1/4-ton > capacity and four-wheel drive used by the U.S. army in World War II. > __________________________________________________ ___________________ > > cantrelm wrote: > > That is what I am doing. Making my own swing arm bumper, with a 2" hitch > > receiver in the middle of the bumper tube..... These pictures don't have the > > hitch cut and welded in yet, but it will be dead center of the main bumper. > > The whole thing will bolt to the frame rails where my current hitch bolts > > now and also use the crossmember mounts that the standard bumper has. > > http://www.cantrell.com/scrap/bump1.jpg > > http://www.cantrell.com/scrap/bump2.jpg > > I am putting a hi-lift jack mount on there also. > > > > Tom |
Re: Bumper-mounted trailer hitch bracket for Jeep Wrangler TJ
Thanks,
But the real question is when will this one be ready (lol) I have been working on it when I get breaks at work and so far it has taken me about 6 months. I still have to do the safety tow plate under the hitch and all the mounting brackets. Even as sturdy as this one is I am concerned about towing my trailer with it and it is made out of 1/4" x 3" x 4" rectangular tubing with 1/4" mounting brackets to the frame rails. This thing Richard has come up with is mounted to a piece of sheet metal that is only 3/32" thick........Glad I don't live in Florida...... Richard, please don't think that I am flaming you.....I am just concerned about the people behind you.....Remember that one ounce of prevention is worth a pound of cure..... Tom "twaldron" <thomasOBVIOUS@rubicons.com> wrote in message news:edidnYLMILUCd0renZ2dnUVZ_tOdnZ2d@comcast.com. .. > Very nice job...but the question is, when will _mine_ be ready? ;) > __________________________________________________ ___________________ > 2003 TJ Rubicon * 2001 XJ Sport * 1971 Bill Stroppe Baja Bronco > > "There is a very fine line between 'hobby' and 'mental illness'." > > Pronunciation: 'jEp Function: noun Date: 1940 > > Etymology: from g. p. (G= 'Government' P= '80 inch wheelbase') > A small general-purpose motor vehicle with 80" wheelbase, 1/4-ton > capacity and four-wheel drive used by the U.S. army in World War II. > __________________________________________________ ___________________ > > cantrelm wrote: > > That is what I am doing. Making my own swing arm bumper, with a 2" hitch > > receiver in the middle of the bumper tube..... These pictures don't have the > > hitch cut and welded in yet, but it will be dead center of the main bumper. > > The whole thing will bolt to the frame rails where my current hitch bolts > > now and also use the crossmember mounts that the standard bumper has. > > http://www.cantrell.com/scrap/bump1.jpg > > http://www.cantrell.com/scrap/bump2.jpg > > I am putting a hi-lift jack mount on there also. > > > > Tom |
Re: Bumper-mounted trailer hitch bracket for Jeep Wrangler TJ
Richard J Kinch wrote:
> twaldron writes: > > >>On that note, the added 'tail' to the vehicle reduces departure angle. > > > The frame-mounted receiver hitches are much worse in that regard. True, that's why I have an integrated bumper/hitch. Zero clearance issues. tw __________________________________________________ ___________________ 2003 TJ Rubicon * 2001 XJ Sport * 1971 Bill Stroppe Baja Bronco "There is a very fine line between 'hobby' and 'mental illness'." Pronunciation: 'jEp Function: noun Date: 1940 Etymology: from g. p. (G= 'Government' P= '80 inch wheelbase') A small general-purpose motor vehicle with 80" wheelbase, 1/4-ton capacity and four-wheel drive used by the U.S. army in World War II. __________________________________________________ ___________________ |
Re: Bumper-mounted trailer hitch bracket for Jeep Wrangler TJ
Richard J Kinch wrote:
> twaldron writes: > > >>On that note, the added 'tail' to the vehicle reduces departure angle. > > > The frame-mounted receiver hitches are much worse in that regard. True, that's why I have an integrated bumper/hitch. Zero clearance issues. tw __________________________________________________ ___________________ 2003 TJ Rubicon * 2001 XJ Sport * 1971 Bill Stroppe Baja Bronco "There is a very fine line between 'hobby' and 'mental illness'." Pronunciation: 'jEp Function: noun Date: 1940 Etymology: from g. p. (G= 'Government' P= '80 inch wheelbase') A small general-purpose motor vehicle with 80" wheelbase, 1/4-ton capacity and four-wheel drive used by the U.S. army in World War II. __________________________________________________ ___________________ |
Re: Bumper-mounted trailer hitch bracket for Jeep Wrangler TJ
Richard J Kinch wrote:
> twaldron writes: > > >>On that note, the added 'tail' to the vehicle reduces departure angle. > > > The frame-mounted receiver hitches are much worse in that regard. True, that's why I have an integrated bumper/hitch. Zero clearance issues. tw __________________________________________________ ___________________ 2003 TJ Rubicon * 2001 XJ Sport * 1971 Bill Stroppe Baja Bronco "There is a very fine line between 'hobby' and 'mental illness'." Pronunciation: 'jEp Function: noun Date: 1940 Etymology: from g. p. (G= 'Government' P= '80 inch wheelbase') A small general-purpose motor vehicle with 80" wheelbase, 1/4-ton capacity and four-wheel drive used by the U.S. army in World War II. __________________________________________________ ___________________ |
Re: Bumper-mounted trailer hitch bracket for Jeep Wrangler TJ
I'll bet he also didn't think about what happens if he front ends
someone while pulling the trailer. He will have a thousand pound plus spear running right through that sheet metal bumper, right through the door, seat and anything/body else in it's way... Mike 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 88 Cherokee 235 BFG AT's Canadian Off Road Trips Photos: Non members can still view! Jan/06 http://www.imagestation.com/album/pi...?id=2115147590 (More Off Road album links at bottom of the view page) cantrelm wrote: > > Richard, in your article you make a point of saying "I used Grade 5 bolts > since ungraded hardware is not suitable for load-bearing applications. " > You do realize that the bumper you are attaching to is only 3/32" thick and > is not rated for load bearing applications....... This is somewhat of a > contradiction don't you think? > > Tom > > "Richard J Kinch" <kinch@truetex.com> wrote in message > news:Xns9756BE3F3DDE8someconundrum@216.196.97.131. .. > > Grumman-581 writes: > > > > > Perhaps his next project should be to design a real bumper for his TJ > ... > > > > Bad idea. Bumpers are weaker than the frame so they absorb impact energy > > instead of bending the frame. You put a heavy bumper (or a frame hitch > for > > that matter) on the back of your car, and many collisions are going to > > result in frame damage that would have just been a simple bolt-on swap of > a > > new bumper. > > > > On a previous rear-ended TJ I was able to replace a crunched back bumper > > with a $25 OEM item from eBay (surplus to somebody's aftermarket upgrade) > > with hand tools. The other guy had $1000s in damage. > > > > I wonder if people buying all those macho aftermarket bumpers understand > > that they've *given up* a lot of their crash protection? |
Re: Bumper-mounted trailer hitch bracket for Jeep Wrangler TJ
I'll bet he also didn't think about what happens if he front ends
someone while pulling the trailer. He will have a thousand pound plus spear running right through that sheet metal bumper, right through the door, seat and anything/body else in it's way... Mike 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 88 Cherokee 235 BFG AT's Canadian Off Road Trips Photos: Non members can still view! Jan/06 http://www.imagestation.com/album/pi...?id=2115147590 (More Off Road album links at bottom of the view page) cantrelm wrote: > > Richard, in your article you make a point of saying "I used Grade 5 bolts > since ungraded hardware is not suitable for load-bearing applications. " > You do realize that the bumper you are attaching to is only 3/32" thick and > is not rated for load bearing applications....... This is somewhat of a > contradiction don't you think? > > Tom > > "Richard J Kinch" <kinch@truetex.com> wrote in message > news:Xns9756BE3F3DDE8someconundrum@216.196.97.131. .. > > Grumman-581 writes: > > > > > Perhaps his next project should be to design a real bumper for his TJ > ... > > > > Bad idea. Bumpers are weaker than the frame so they absorb impact energy > > instead of bending the frame. You put a heavy bumper (or a frame hitch > for > > that matter) on the back of your car, and many collisions are going to > > result in frame damage that would have just been a simple bolt-on swap of > a > > new bumper. > > > > On a previous rear-ended TJ I was able to replace a crunched back bumper > > with a $25 OEM item from eBay (surplus to somebody's aftermarket upgrade) > > with hand tools. The other guy had $1000s in damage. > > > > I wonder if people buying all those macho aftermarket bumpers understand > > that they've *given up* a lot of their crash protection? |
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