Shackles
05-04-2004, 11:02 PM
#51
Guest
Posts: n/a
Re: Shackles
The pivot point is the shackle.
The arch is designed for so much travel at the pivot point.
Change the length of travel at the pivot and the springs can straighten
out too much which destroys the arch pretty fast.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Roy J wrote:
>
> Tell me one more time why longer shackles affects the springs?
> Wher is this "leverage" coming from???? The springs on the pix
> look just like the ones on my Jeep with stock shackles.
>
> My beef with the longer shackles is the change in caster as well
> as the sideways flop that tends to happen even if the shackles
> have the center brace.
>
> L.W.(ßill) ------ III wrote:
>
> > That little two inches is enough leverage to take the arc right out
> > and bend it the other way: http://www.----------.com/93-YJ-2.jpg
> > God Bless America, ßill O|||||||O
> > mailto:-------------------- http://www.----------.com/
> >
> > Jeepster wrote:
> >
> >>I was looking to beef up my shackles from the stock crap that my YJ
> >>has. I have a question ........
> >>
> >>Would going with a shackle that was 1" or 2" inches taller cause any
> >>problems?
> >>
> >>I have new springs on this Jeep so the springs have a lot of life left
> >>in them.
The arch is designed for so much travel at the pivot point.
Change the length of travel at the pivot and the springs can straighten
out too much which destroys the arch pretty fast.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Roy J wrote:
>
> Tell me one more time why longer shackles affects the springs?
> Wher is this "leverage" coming from???? The springs on the pix
> look just like the ones on my Jeep with stock shackles.
>
> My beef with the longer shackles is the change in caster as well
> as the sideways flop that tends to happen even if the shackles
> have the center brace.
>
> L.W.(ßill) ------ III wrote:
>
> > That little two inches is enough leverage to take the arc right out
> > and bend it the other way: http://www.----------.com/93-YJ-2.jpg
> > God Bless America, ßill O|||||||O
> > mailto:-------------------- http://www.----------.com/
> >
> > Jeepster wrote:
> >
> >>I was looking to beef up my shackles from the stock crap that my YJ
> >>has. I have a question ........
> >>
> >>Would going with a shackle that was 1" or 2" inches taller cause any
> >>problems?
> >>
> >>I have new springs on this Jeep so the springs have a lot of life left
> >>in them.
05-04-2004, 11:02 PM
#52
Guest
Posts: n/a
Re: Shackles
The pivot point is the shackle.
The arch is designed for so much travel at the pivot point.
Change the length of travel at the pivot and the springs can straighten
out too much which destroys the arch pretty fast.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Roy J wrote:
>
> Tell me one more time why longer shackles affects the springs?
> Wher is this "leverage" coming from???? The springs on the pix
> look just like the ones on my Jeep with stock shackles.
>
> My beef with the longer shackles is the change in caster as well
> as the sideways flop that tends to happen even if the shackles
> have the center brace.
>
> L.W.(ßill) ------ III wrote:
>
> > That little two inches is enough leverage to take the arc right out
> > and bend it the other way: http://www.----------.com/93-YJ-2.jpg
> > God Bless America, ßill O|||||||O
> > mailto:-------------------- http://www.----------.com/
> >
> > Jeepster wrote:
> >
> >>I was looking to beef up my shackles from the stock crap that my YJ
> >>has. I have a question ........
> >>
> >>Would going with a shackle that was 1" or 2" inches taller cause any
> >>problems?
> >>
> >>I have new springs on this Jeep so the springs have a lot of life left
> >>in them.
The arch is designed for so much travel at the pivot point.
Change the length of travel at the pivot and the springs can straighten
out too much which destroys the arch pretty fast.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Roy J wrote:
>
> Tell me one more time why longer shackles affects the springs?
> Wher is this "leverage" coming from???? The springs on the pix
> look just like the ones on my Jeep with stock shackles.
>
> My beef with the longer shackles is the change in caster as well
> as the sideways flop that tends to happen even if the shackles
> have the center brace.
>
> L.W.(ßill) ------ III wrote:
>
> > That little two inches is enough leverage to take the arc right out
> > and bend it the other way: http://www.----------.com/93-YJ-2.jpg
> > God Bless America, ßill O|||||||O
> > mailto:-------------------- http://www.----------.com/
> >
> > Jeepster wrote:
> >
> >>I was looking to beef up my shackles from the stock crap that my YJ
> >>has. I have a question ........
> >>
> >>Would going with a shackle that was 1" or 2" inches taller cause any
> >>problems?
> >>
> >>I have new springs on this Jeep so the springs have a lot of life left
> >>in them.
05-04-2004, 11:02 PM
#53
Guest
Posts: n/a
Re: Shackles
The pivot point is the shackle.
The arch is designed for so much travel at the pivot point.
Change the length of travel at the pivot and the springs can straighten
out too much which destroys the arch pretty fast.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Roy J wrote:
>
> Tell me one more time why longer shackles affects the springs?
> Wher is this "leverage" coming from???? The springs on the pix
> look just like the ones on my Jeep with stock shackles.
>
> My beef with the longer shackles is the change in caster as well
> as the sideways flop that tends to happen even if the shackles
> have the center brace.
>
> L.W.(ßill) ------ III wrote:
>
> > That little two inches is enough leverage to take the arc right out
> > and bend it the other way: http://www.----------.com/93-YJ-2.jpg
> > God Bless America, ßill O|||||||O
> > mailto:-------------------- http://www.----------.com/
> >
> > Jeepster wrote:
> >
> >>I was looking to beef up my shackles from the stock crap that my YJ
> >>has. I have a question ........
> >>
> >>Would going with a shackle that was 1" or 2" inches taller cause any
> >>problems?
> >>
> >>I have new springs on this Jeep so the springs have a lot of life left
> >>in them.
The arch is designed for so much travel at the pivot point.
Change the length of travel at the pivot and the springs can straighten
out too much which destroys the arch pretty fast.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Roy J wrote:
>
> Tell me one more time why longer shackles affects the springs?
> Wher is this "leverage" coming from???? The springs on the pix
> look just like the ones on my Jeep with stock shackles.
>
> My beef with the longer shackles is the change in caster as well
> as the sideways flop that tends to happen even if the shackles
> have the center brace.
>
> L.W.(ßill) ------ III wrote:
>
> > That little two inches is enough leverage to take the arc right out
> > and bend it the other way: http://www.----------.com/93-YJ-2.jpg
> > God Bless America, ßill O|||||||O
> > mailto:-------------------- http://www.----------.com/
> >
> > Jeepster wrote:
> >
> >>I was looking to beef up my shackles from the stock crap that my YJ
> >>has. I have a question ........
> >>
> >>Would going with a shackle that was 1" or 2" inches taller cause any
> >>problems?
> >>
> >>I have new springs on this Jeep so the springs have a lot of life left
> >>in them.
05-04-2004, 11:11 PM
#54
Guest
Posts: n/a
Re: Shackles
Sure do, I teach this stuff at the undergrad level. That's why I
asked.
L.W.(ßill) ------ III wrote:
> Leverage is very basic physics. You may understand the theory of a
> torque wrench.
> God Bless America, ßill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> Roy J wrote:
>
>>Tell me one more time why longer shackles affects the springs?
>>Wher is this "leverage" coming from???? The springs on the pix
>>look just like the ones on my Jeep with stock shackles.
>>
>>My beef with the longer shackles is the change in caster as well
>>as the sideways flop that tends to happen even if the shackles
>>have the center brace.
asked.
L.W.(ßill) ------ III wrote:
> Leverage is very basic physics. You may understand the theory of a
> torque wrench.
> God Bless America, ßill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> Roy J wrote:
>
>>Tell me one more time why longer shackles affects the springs?
>>Wher is this "leverage" coming from???? The springs on the pix
>>look just like the ones on my Jeep with stock shackles.
>>
>>My beef with the longer shackles is the change in caster as well
>>as the sideways flop that tends to happen even if the shackles
>>have the center brace.
05-04-2004, 11:11 PM
#55
Guest
Posts: n/a
Re: Shackles
Sure do, I teach this stuff at the undergrad level. That's why I
asked.
L.W.(ßill) ------ III wrote:
> Leverage is very basic physics. You may understand the theory of a
> torque wrench.
> God Bless America, ßill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> Roy J wrote:
>
>>Tell me one more time why longer shackles affects the springs?
>>Wher is this "leverage" coming from???? The springs on the pix
>>look just like the ones on my Jeep with stock shackles.
>>
>>My beef with the longer shackles is the change in caster as well
>>as the sideways flop that tends to happen even if the shackles
>>have the center brace.
asked.
L.W.(ßill) ------ III wrote:
> Leverage is very basic physics. You may understand the theory of a
> torque wrench.
> God Bless America, ßill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> Roy J wrote:
>
>>Tell me one more time why longer shackles affects the springs?
>>Wher is this "leverage" coming from???? The springs on the pix
>>look just like the ones on my Jeep with stock shackles.
>>
>>My beef with the longer shackles is the change in caster as well
>>as the sideways flop that tends to happen even if the shackles
>>have the center brace.
05-04-2004, 11:11 PM
#56
Guest
Posts: n/a
Re: Shackles
Sure do, I teach this stuff at the undergrad level. That's why I
asked.
L.W.(ßill) ------ III wrote:
> Leverage is very basic physics. You may understand the theory of a
> torque wrench.
> God Bless America, ßill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> Roy J wrote:
>
>>Tell me one more time why longer shackles affects the springs?
>>Wher is this "leverage" coming from???? The springs on the pix
>>look just like the ones on my Jeep with stock shackles.
>>
>>My beef with the longer shackles is the change in caster as well
>>as the sideways flop that tends to happen even if the shackles
>>have the center brace.
asked.
L.W.(ßill) ------ III wrote:
> Leverage is very basic physics. You may understand the theory of a
> torque wrench.
> God Bless America, ßill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> Roy J wrote:
>
>>Tell me one more time why longer shackles affects the springs?
>>Wher is this "leverage" coming from???? The springs on the pix
>>look just like the ones on my Jeep with stock shackles.
>>
>>My beef with the longer shackles is the change in caster as well
>>as the sideways flop that tends to happen even if the shackles
>>have the center brace.
05-04-2004, 11:11 PM
#57
Guest
Posts: n/a
Re: Shackles
Sure do, I teach this stuff at the undergrad level. That's why I
asked.
L.W.(ßill) ------ III wrote:
> Leverage is very basic physics. You may understand the theory of a
> torque wrench.
> God Bless America, ßill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> Roy J wrote:
>
>>Tell me one more time why longer shackles affects the springs?
>>Wher is this "leverage" coming from???? The springs on the pix
>>look just like the ones on my Jeep with stock shackles.
>>
>>My beef with the longer shackles is the change in caster as well
>>as the sideways flop that tends to happen even if the shackles
>>have the center brace.
asked.
L.W.(ßill) ------ III wrote:
> Leverage is very basic physics. You may understand the theory of a
> torque wrench.
> God Bless America, ßill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> Roy J wrote:
>
>>Tell me one more time why longer shackles affects the springs?
>>Wher is this "leverage" coming from???? The springs on the pix
>>look just like the ones on my Jeep with stock shackles.
>>
>>My beef with the longer shackles is the change in caster as well
>>as the sideways flop that tends to happen even if the shackles
>>have the center brace.
05-04-2004, 11:48 PM
#58
Guest
Posts: n/a
Re: Shackles
You really can't see the leverage exerted on the length of spring
by a longer shackle? You will need to plug in the value at:
http://www.trebuchet.com/hardware/load.html We know that for the shackle
for the sake of argument the weight each shackle supports is about one
eighth of the Jeep, and that the stock shackle is nearly straight down,
in the short stock position, like a stilt, where nearly no energy is
trying to straighten the spring out, but you put the longer shackle on
it, it then tilts forward, that distance is the figure you may plug into
your model, a force that wasn't there before, you may take a breaker bar
and try to force it back underneath, but you'll soon learn that new
force is now too great. I suggest taking one of your classes.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/
Roy J wrote:
>
> Sure do, I teach this stuff at the undergrad level. That's why I
> asked.
by a longer shackle? You will need to plug in the value at:
http://www.trebuchet.com/hardware/load.html We know that for the shackle
for the sake of argument the weight each shackle supports is about one
eighth of the Jeep, and that the stock shackle is nearly straight down,
in the short stock position, like a stilt, where nearly no energy is
trying to straighten the spring out, but you put the longer shackle on
it, it then tilts forward, that distance is the figure you may plug into
your model, a force that wasn't there before, you may take a breaker bar
and try to force it back underneath, but you'll soon learn that new
force is now too great. I suggest taking one of your classes.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/
Roy J wrote:
>
> Sure do, I teach this stuff at the undergrad level. That's why I
> asked.
05-04-2004, 11:48 PM
#59
Guest
Posts: n/a
Re: Shackles
You really can't see the leverage exerted on the length of spring
by a longer shackle? You will need to plug in the value at:
http://www.trebuchet.com/hardware/load.html We know that for the shackle
for the sake of argument the weight each shackle supports is about one
eighth of the Jeep, and that the stock shackle is nearly straight down,
in the short stock position, like a stilt, where nearly no energy is
trying to straighten the spring out, but you put the longer shackle on
it, it then tilts forward, that distance is the figure you may plug into
your model, a force that wasn't there before, you may take a breaker bar
and try to force it back underneath, but you'll soon learn that new
force is now too great. I suggest taking one of your classes.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/
Roy J wrote:
>
> Sure do, I teach this stuff at the undergrad level. That's why I
> asked.
by a longer shackle? You will need to plug in the value at:
http://www.trebuchet.com/hardware/load.html We know that for the shackle
for the sake of argument the weight each shackle supports is about one
eighth of the Jeep, and that the stock shackle is nearly straight down,
in the short stock position, like a stilt, where nearly no energy is
trying to straighten the spring out, but you put the longer shackle on
it, it then tilts forward, that distance is the figure you may plug into
your model, a force that wasn't there before, you may take a breaker bar
and try to force it back underneath, but you'll soon learn that new
force is now too great. I suggest taking one of your classes.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/
Roy J wrote:
>
> Sure do, I teach this stuff at the undergrad level. That's why I
> asked.
05-04-2004, 11:48 PM
#60
Guest
Posts: n/a
Re: Shackles
You really can't see the leverage exerted on the length of spring
by a longer shackle? You will need to plug in the value at:
http://www.trebuchet.com/hardware/load.html We know that for the shackle
for the sake of argument the weight each shackle supports is about one
eighth of the Jeep, and that the stock shackle is nearly straight down,
in the short stock position, like a stilt, where nearly no energy is
trying to straighten the spring out, but you put the longer shackle on
it, it then tilts forward, that distance is the figure you may plug into
your model, a force that wasn't there before, you may take a breaker bar
and try to force it back underneath, but you'll soon learn that new
force is now too great. I suggest taking one of your classes.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/
Roy J wrote:
>
> Sure do, I teach this stuff at the undergrad level. That's why I
> asked.
by a longer shackle? You will need to plug in the value at:
http://www.trebuchet.com/hardware/load.html We know that for the shackle
for the sake of argument the weight each shackle supports is about one
eighth of the Jeep, and that the stock shackle is nearly straight down,
in the short stock position, like a stilt, where nearly no energy is
trying to straighten the spring out, but you put the longer shackle on
it, it then tilts forward, that distance is the figure you may plug into
your model, a force that wasn't there before, you may take a breaker bar
and try to force it back underneath, but you'll soon learn that new
force is now too great. I suggest taking one of your classes.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/
Roy J wrote:
>
> Sure do, I teach this stuff at the undergrad level. That's why I
> asked.