CJ handling problems after 4" lift
05-18-2005, 12:33 PM
#41
Guest
Posts: n/a
Re: CJ handling problems after 4" lift
Jeff Strickland wrote:
>
> "Tracy Brooks" <tracy.brooks@moderntech.com> wrote in message
> news:118micf2l0mg98e@corp.supernews.com...
> >
> > Mike,
> > At the risk of sounding even more stupid...what would I "shim" in the
> front?
> > The axel?
> >
> Yes. Just like you shimmed the rear - you shimmed the rear, right? If not,
> this could explain your vibes.
>
> > For the rear, I read an article which stressed the importance of the yokes
> > being parallel. When looking at the output of the tcase, and the iput of
> the
> > diff, in order for them to be parrallel, I would need to remove the shims
> on
> > the rear axel. This would then make the driveshaft angle very steep at
> both
> > ends.
> >
> > -Tracy
>
> The centerline of the crank, trans, tcase, and so on needs to be parallel to
> the pinion. With the lift you have, there is no way in hell you will have
> parallel lines with out shims. With the double cardan drive shaft in the
> rear, then this rule is modified somewhat.
>
> Your problem is gonna be on the front. You have so much lift from the
> shackles that you have lost your caster angle, and the way to get it back
> will make your driveline angles on the front even worse, and you could be
> getting vibes from there already. To add insult to injury, one of the
> corrective actions for the back is to drop the tcase some more, but this
> will exaserbate the trouble in the front some more. The saving grace is that
> the front drive shaft is so long that the angle differences will be less
> significant than for the rear, so the solutions might be workable.
It would likely be better to put in the 1" taller engine mounts and
maybe help the angles better that way than a t-case drop.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
>
> "Tracy Brooks" <tracy.brooks@moderntech.com> wrote in message
> news:118micf2l0mg98e@corp.supernews.com...
> >
> > Mike,
> > At the risk of sounding even more stupid...what would I "shim" in the
> front?
> > The axel?
> >
> Yes. Just like you shimmed the rear - you shimmed the rear, right? If not,
> this could explain your vibes.
>
> > For the rear, I read an article which stressed the importance of the yokes
> > being parallel. When looking at the output of the tcase, and the iput of
> the
> > diff, in order for them to be parrallel, I would need to remove the shims
> on
> > the rear axel. This would then make the driveshaft angle very steep at
> both
> > ends.
> >
> > -Tracy
>
> The centerline of the crank, trans, tcase, and so on needs to be parallel to
> the pinion. With the lift you have, there is no way in hell you will have
> parallel lines with out shims. With the double cardan drive shaft in the
> rear, then this rule is modified somewhat.
>
> Your problem is gonna be on the front. You have so much lift from the
> shackles that you have lost your caster angle, and the way to get it back
> will make your driveline angles on the front even worse, and you could be
> getting vibes from there already. To add insult to injury, one of the
> corrective actions for the back is to drop the tcase some more, but this
> will exaserbate the trouble in the front some more. The saving grace is that
> the front drive shaft is so long that the angle differences will be less
> significant than for the rear, so the solutions might be workable.
It would likely be better to put in the 1" taller engine mounts and
maybe help the angles better that way than a t-case drop.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
05-18-2005, 01:00 PM
#42
Guest
Posts: n/a
Re: CJ handling problems after 4" lift
Yeah, I relied on the 4x4 shop's recommendation for the lift and shackles.
Of course, they cater to the extreme crowd....the ones who think a weekend
is fun only if it includes at least one roll-over.
The original shackles measured 3" bolt to bolt, mine measure 6". I guess
I'll start by replacing the shackles with 4" ones. Do you think that will
give the springs enough room to flex.
Thanks,
-Tracy
"Jeff Strickland" <spamcatcher@yahoo.net> wrote in message
news:hY2dnWMvoMl_-BbfRVn-2w@ez2.net...
>
> 6" shackles!!! Take those off and go back to stock, or at most 1" longer
> than stock. What you want is heavy duty shackles that are a little bit
> longer than stock, not long shackles that are the same strenght as stock.
> Shackles are a source of twist and bend in the suspension.
>
05-18-2005, 01:00 PM
#43
Guest
Posts: n/a
Re: CJ handling problems after 4" lift
Yeah, I relied on the 4x4 shop's recommendation for the lift and shackles.
Of course, they cater to the extreme crowd....the ones who think a weekend
is fun only if it includes at least one roll-over.
The original shackles measured 3" bolt to bolt, mine measure 6". I guess
I'll start by replacing the shackles with 4" ones. Do you think that will
give the springs enough room to flex.
Thanks,
-Tracy
"Jeff Strickland" <spamcatcher@yahoo.net> wrote in message
news:hY2dnWMvoMl_-BbfRVn-2w@ez2.net...
>
> 6" shackles!!! Take those off and go back to stock, or at most 1" longer
> than stock. What you want is heavy duty shackles that are a little bit
> longer than stock, not long shackles that are the same strenght as stock.
> Shackles are a source of twist and bend in the suspension.
>
05-18-2005, 01:00 PM
#44
Guest
Posts: n/a
Re: CJ handling problems after 4" lift
Yeah, I relied on the 4x4 shop's recommendation for the lift and shackles.
Of course, they cater to the extreme crowd....the ones who think a weekend
is fun only if it includes at least one roll-over.
The original shackles measured 3" bolt to bolt, mine measure 6". I guess
I'll start by replacing the shackles with 4" ones. Do you think that will
give the springs enough room to flex.
Thanks,
-Tracy
"Jeff Strickland" <spamcatcher@yahoo.net> wrote in message
news:hY2dnWMvoMl_-BbfRVn-2w@ez2.net...
>
> 6" shackles!!! Take those off and go back to stock, or at most 1" longer
> than stock. What you want is heavy duty shackles that are a little bit
> longer than stock, not long shackles that are the same strenght as stock.
> Shackles are a source of twist and bend in the suspension.
>
05-18-2005, 01:00 PM
#45
Guest
Posts: n/a
Re: CJ handling problems after 4" lift
Yeah, I relied on the 4x4 shop's recommendation for the lift and shackles.
Of course, they cater to the extreme crowd....the ones who think a weekend
is fun only if it includes at least one roll-over.
The original shackles measured 3" bolt to bolt, mine measure 6". I guess
I'll start by replacing the shackles with 4" ones. Do you think that will
give the springs enough room to flex.
Thanks,
-Tracy
"Jeff Strickland" <spamcatcher@yahoo.net> wrote in message
news:hY2dnWMvoMl_-BbfRVn-2w@ez2.net...
>
> 6" shackles!!! Take those off and go back to stock, or at most 1" longer
> than stock. What you want is heavy duty shackles that are a little bit
> longer than stock, not long shackles that are the same strenght as stock.
> Shackles are a source of twist and bend in the suspension.
>
05-18-2005, 01:49 PM
#46
Guest
Posts: n/a
Re: CJ handling problems after 4" lift
I know of NO member of the extreme crowd that uses 6" shackles. Indeed,
these are a disaster waiting to happen. I have the ConFer heavy duty
shackles, and they are just a fraction of an inch longer than stock, I
assume this is because the material is so much beefier that they needed the
space avoid compromising the strength after they drilled the holes.
The springs should be longer to accomodate the added arch, therefore in
theory the original shackles should be fine. As a practical matter, you want
the absolute shortest shackle you can get. I'd agree that the stock shackles
for that lift would be too short, but there is no question that the 6"
shackles you got are way too long. I can't suggest the right shackle, sorry,
but the wrong shackle is the one you already have.
I forgot what springs you got, but if you have ProComp springs, they won't
flex much no matter how long the shackles are.
"Tracy Brooks" <tracy.brooks@moderntech.com> wrote in message
news:118mt591fqcsb6b@corp.supernews.com...
>
> Yeah, I relied on the 4x4 shop's recommendation for the lift and shackles.
> Of course, they cater to the extreme crowd....the ones who think a weekend
> is fun only if it includes at least one roll-over.
>
> The original shackles measured 3" bolt to bolt, mine measure 6". I guess
> I'll start by replacing the shackles with 4" ones. Do you think that will
> give the springs enough room to flex.
>
> Thanks,
> -Tracy
>
>
> "Jeff Strickland" <spamcatcher@yahoo.net> wrote in message
> news:hY2dnWMvoMl_-BbfRVn-2w@ez2.net...
> >
> > 6" shackles!!! Take those off and go back to stock, or at most 1" longer
> > than stock. What you want is heavy duty shackles that are a little bit
> > longer than stock, not long shackles that are the same strenght as
stock.
> > Shackles are a source of twist and bend in the suspension.
> >
>
>
>
these are a disaster waiting to happen. I have the ConFer heavy duty
shackles, and they are just a fraction of an inch longer than stock, I
assume this is because the material is so much beefier that they needed the
space avoid compromising the strength after they drilled the holes.
The springs should be longer to accomodate the added arch, therefore in
theory the original shackles should be fine. As a practical matter, you want
the absolute shortest shackle you can get. I'd agree that the stock shackles
for that lift would be too short, but there is no question that the 6"
shackles you got are way too long. I can't suggest the right shackle, sorry,
but the wrong shackle is the one you already have.
I forgot what springs you got, but if you have ProComp springs, they won't
flex much no matter how long the shackles are.
"Tracy Brooks" <tracy.brooks@moderntech.com> wrote in message
news:118mt591fqcsb6b@corp.supernews.com...
>
> Yeah, I relied on the 4x4 shop's recommendation for the lift and shackles.
> Of course, they cater to the extreme crowd....the ones who think a weekend
> is fun only if it includes at least one roll-over.
>
> The original shackles measured 3" bolt to bolt, mine measure 6". I guess
> I'll start by replacing the shackles with 4" ones. Do you think that will
> give the springs enough room to flex.
>
> Thanks,
> -Tracy
>
>
> "Jeff Strickland" <spamcatcher@yahoo.net> wrote in message
> news:hY2dnWMvoMl_-BbfRVn-2w@ez2.net...
> >
> > 6" shackles!!! Take those off and go back to stock, or at most 1" longer
> > than stock. What you want is heavy duty shackles that are a little bit
> > longer than stock, not long shackles that are the same strenght as
stock.
> > Shackles are a source of twist and bend in the suspension.
> >
>
>
>
05-18-2005, 01:49 PM
#47
Guest
Posts: n/a
Re: CJ handling problems after 4" lift
I know of NO member of the extreme crowd that uses 6" shackles. Indeed,
these are a disaster waiting to happen. I have the ConFer heavy duty
shackles, and they are just a fraction of an inch longer than stock, I
assume this is because the material is so much beefier that they needed the
space avoid compromising the strength after they drilled the holes.
The springs should be longer to accomodate the added arch, therefore in
theory the original shackles should be fine. As a practical matter, you want
the absolute shortest shackle you can get. I'd agree that the stock shackles
for that lift would be too short, but there is no question that the 6"
shackles you got are way too long. I can't suggest the right shackle, sorry,
but the wrong shackle is the one you already have.
I forgot what springs you got, but if you have ProComp springs, they won't
flex much no matter how long the shackles are.
"Tracy Brooks" <tracy.brooks@moderntech.com> wrote in message
news:118mt591fqcsb6b@corp.supernews.com...
>
> Yeah, I relied on the 4x4 shop's recommendation for the lift and shackles.
> Of course, they cater to the extreme crowd....the ones who think a weekend
> is fun only if it includes at least one roll-over.
>
> The original shackles measured 3" bolt to bolt, mine measure 6". I guess
> I'll start by replacing the shackles with 4" ones. Do you think that will
> give the springs enough room to flex.
>
> Thanks,
> -Tracy
>
>
> "Jeff Strickland" <spamcatcher@yahoo.net> wrote in message
> news:hY2dnWMvoMl_-BbfRVn-2w@ez2.net...
> >
> > 6" shackles!!! Take those off and go back to stock, or at most 1" longer
> > than stock. What you want is heavy duty shackles that are a little bit
> > longer than stock, not long shackles that are the same strenght as
stock.
> > Shackles are a source of twist and bend in the suspension.
> >
>
>
>
these are a disaster waiting to happen. I have the ConFer heavy duty
shackles, and they are just a fraction of an inch longer than stock, I
assume this is because the material is so much beefier that they needed the
space avoid compromising the strength after they drilled the holes.
The springs should be longer to accomodate the added arch, therefore in
theory the original shackles should be fine. As a practical matter, you want
the absolute shortest shackle you can get. I'd agree that the stock shackles
for that lift would be too short, but there is no question that the 6"
shackles you got are way too long. I can't suggest the right shackle, sorry,
but the wrong shackle is the one you already have.
I forgot what springs you got, but if you have ProComp springs, they won't
flex much no matter how long the shackles are.
"Tracy Brooks" <tracy.brooks@moderntech.com> wrote in message
news:118mt591fqcsb6b@corp.supernews.com...
>
> Yeah, I relied on the 4x4 shop's recommendation for the lift and shackles.
> Of course, they cater to the extreme crowd....the ones who think a weekend
> is fun only if it includes at least one roll-over.
>
> The original shackles measured 3" bolt to bolt, mine measure 6". I guess
> I'll start by replacing the shackles with 4" ones. Do you think that will
> give the springs enough room to flex.
>
> Thanks,
> -Tracy
>
>
> "Jeff Strickland" <spamcatcher@yahoo.net> wrote in message
> news:hY2dnWMvoMl_-BbfRVn-2w@ez2.net...
> >
> > 6" shackles!!! Take those off and go back to stock, or at most 1" longer
> > than stock. What you want is heavy duty shackles that are a little bit
> > longer than stock, not long shackles that are the same strenght as
stock.
> > Shackles are a source of twist and bend in the suspension.
> >
>
>
>
05-18-2005, 01:49 PM
#48
Guest
Posts: n/a
Re: CJ handling problems after 4" lift
I know of NO member of the extreme crowd that uses 6" shackles. Indeed,
these are a disaster waiting to happen. I have the ConFer heavy duty
shackles, and they are just a fraction of an inch longer than stock, I
assume this is because the material is so much beefier that they needed the
space avoid compromising the strength after they drilled the holes.
The springs should be longer to accomodate the added arch, therefore in
theory the original shackles should be fine. As a practical matter, you want
the absolute shortest shackle you can get. I'd agree that the stock shackles
for that lift would be too short, but there is no question that the 6"
shackles you got are way too long. I can't suggest the right shackle, sorry,
but the wrong shackle is the one you already have.
I forgot what springs you got, but if you have ProComp springs, they won't
flex much no matter how long the shackles are.
"Tracy Brooks" <tracy.brooks@moderntech.com> wrote in message
news:118mt591fqcsb6b@corp.supernews.com...
>
> Yeah, I relied on the 4x4 shop's recommendation for the lift and shackles.
> Of course, they cater to the extreme crowd....the ones who think a weekend
> is fun only if it includes at least one roll-over.
>
> The original shackles measured 3" bolt to bolt, mine measure 6". I guess
> I'll start by replacing the shackles with 4" ones. Do you think that will
> give the springs enough room to flex.
>
> Thanks,
> -Tracy
>
>
> "Jeff Strickland" <spamcatcher@yahoo.net> wrote in message
> news:hY2dnWMvoMl_-BbfRVn-2w@ez2.net...
> >
> > 6" shackles!!! Take those off and go back to stock, or at most 1" longer
> > than stock. What you want is heavy duty shackles that are a little bit
> > longer than stock, not long shackles that are the same strenght as
stock.
> > Shackles are a source of twist and bend in the suspension.
> >
>
>
>
these are a disaster waiting to happen. I have the ConFer heavy duty
shackles, and they are just a fraction of an inch longer than stock, I
assume this is because the material is so much beefier that they needed the
space avoid compromising the strength after they drilled the holes.
The springs should be longer to accomodate the added arch, therefore in
theory the original shackles should be fine. As a practical matter, you want
the absolute shortest shackle you can get. I'd agree that the stock shackles
for that lift would be too short, but there is no question that the 6"
shackles you got are way too long. I can't suggest the right shackle, sorry,
but the wrong shackle is the one you already have.
I forgot what springs you got, but if you have ProComp springs, they won't
flex much no matter how long the shackles are.
"Tracy Brooks" <tracy.brooks@moderntech.com> wrote in message
news:118mt591fqcsb6b@corp.supernews.com...
>
> Yeah, I relied on the 4x4 shop's recommendation for the lift and shackles.
> Of course, they cater to the extreme crowd....the ones who think a weekend
> is fun only if it includes at least one roll-over.
>
> The original shackles measured 3" bolt to bolt, mine measure 6". I guess
> I'll start by replacing the shackles with 4" ones. Do you think that will
> give the springs enough room to flex.
>
> Thanks,
> -Tracy
>
>
> "Jeff Strickland" <spamcatcher@yahoo.net> wrote in message
> news:hY2dnWMvoMl_-BbfRVn-2w@ez2.net...
> >
> > 6" shackles!!! Take those off and go back to stock, or at most 1" longer
> > than stock. What you want is heavy duty shackles that are a little bit
> > longer than stock, not long shackles that are the same strenght as
stock.
> > Shackles are a source of twist and bend in the suspension.
> >
>
>
>
05-18-2005, 01:49 PM
#49
Guest
Posts: n/a
Re: CJ handling problems after 4" lift
I know of NO member of the extreme crowd that uses 6" shackles. Indeed,
these are a disaster waiting to happen. I have the ConFer heavy duty
shackles, and they are just a fraction of an inch longer than stock, I
assume this is because the material is so much beefier that they needed the
space avoid compromising the strength after they drilled the holes.
The springs should be longer to accomodate the added arch, therefore in
theory the original shackles should be fine. As a practical matter, you want
the absolute shortest shackle you can get. I'd agree that the stock shackles
for that lift would be too short, but there is no question that the 6"
shackles you got are way too long. I can't suggest the right shackle, sorry,
but the wrong shackle is the one you already have.
I forgot what springs you got, but if you have ProComp springs, they won't
flex much no matter how long the shackles are.
"Tracy Brooks" <tracy.brooks@moderntech.com> wrote in message
news:118mt591fqcsb6b@corp.supernews.com...
>
> Yeah, I relied on the 4x4 shop's recommendation for the lift and shackles.
> Of course, they cater to the extreme crowd....the ones who think a weekend
> is fun only if it includes at least one roll-over.
>
> The original shackles measured 3" bolt to bolt, mine measure 6". I guess
> I'll start by replacing the shackles with 4" ones. Do you think that will
> give the springs enough room to flex.
>
> Thanks,
> -Tracy
>
>
> "Jeff Strickland" <spamcatcher@yahoo.net> wrote in message
> news:hY2dnWMvoMl_-BbfRVn-2w@ez2.net...
> >
> > 6" shackles!!! Take those off and go back to stock, or at most 1" longer
> > than stock. What you want is heavy duty shackles that are a little bit
> > longer than stock, not long shackles that are the same strenght as
stock.
> > Shackles are a source of twist and bend in the suspension.
> >
>
>
>
these are a disaster waiting to happen. I have the ConFer heavy duty
shackles, and they are just a fraction of an inch longer than stock, I
assume this is because the material is so much beefier that they needed the
space avoid compromising the strength after they drilled the holes.
The springs should be longer to accomodate the added arch, therefore in
theory the original shackles should be fine. As a practical matter, you want
the absolute shortest shackle you can get. I'd agree that the stock shackles
for that lift would be too short, but there is no question that the 6"
shackles you got are way too long. I can't suggest the right shackle, sorry,
but the wrong shackle is the one you already have.
I forgot what springs you got, but if you have ProComp springs, they won't
flex much no matter how long the shackles are.
"Tracy Brooks" <tracy.brooks@moderntech.com> wrote in message
news:118mt591fqcsb6b@corp.supernews.com...
>
> Yeah, I relied on the 4x4 shop's recommendation for the lift and shackles.
> Of course, they cater to the extreme crowd....the ones who think a weekend
> is fun only if it includes at least one roll-over.
>
> The original shackles measured 3" bolt to bolt, mine measure 6". I guess
> I'll start by replacing the shackles with 4" ones. Do you think that will
> give the springs enough room to flex.
>
> Thanks,
> -Tracy
>
>
> "Jeff Strickland" <spamcatcher@yahoo.net> wrote in message
> news:hY2dnWMvoMl_-BbfRVn-2w@ez2.net...
> >
> > 6" shackles!!! Take those off and go back to stock, or at most 1" longer
> > than stock. What you want is heavy duty shackles that are a little bit
> > longer than stock, not long shackles that are the same strenght as
stock.
> > Shackles are a source of twist and bend in the suspension.
> >
>
>
>
05-18-2005, 02:00 PM
#50
Guest
Posts: n/a
Re: CJ handling problems after 4" lift
They're so much lower than the bumper, it doesn't take much to bend
up the rear part of the spring when it hits a rock.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/
Tracy Brooks wrote:
>
>
> Yeah, I relied on the 4x4 shop's recommendation for the lift and shackles.
> Of course, they cater to the extreme crowd....the ones who think a weekend
> is fun only if it includes at least one roll-over.
>
> The original shackles measured 3" bolt to bolt, mine measure 6". I guess
> I'll start by replacing the shackles with 4" ones. Do you think that will
> give the springs enough room to flex.
>
> Thanks,
> -Tracy
up the rear part of the spring when it hits a rock.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/
Tracy Brooks wrote:
>
>
> Yeah, I relied on the 4x4 shop's recommendation for the lift and shackles.
> Of course, they cater to the extreme crowd....the ones who think a weekend
> is fun only if it includes at least one roll-over.
>
> The original shackles measured 3" bolt to bolt, mine measure 6". I guess
> I'll start by replacing the shackles with 4" ones. Do you think that will
> give the springs enough room to flex.
>
> Thanks,
> -Tracy