Death wobble at 10mph
Thread Starter
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Junior User
Joined: Apr 2006
Posts: 53
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From: Santa Rosa CAli
Death wobble at 10mph
I just installed 14" lift springs all the way arond my crew cab, I also just got new front and rear drivelines.
The problem is that when I drive ove 10+ MPH there is a bad wobble, so bad you have to stop and start over again and keep it low..
Axels are bone stock and before the lift there was no issues.
What could it be, do i need a trac bar?
thanks in advance.
The problem is that when I drive ove 10+ MPH there is a bad wobble, so bad you have to stop and start over again and keep it low..
Axels are bone stock and before the lift there was no issues.
What could it be, do i need a trac bar?
thanks in advance.
Post Fiend
Joined: Jul 2006
Posts: 6,948
Likes: 44
What is your caster like? I run a truck with 44's and rotated the "C's" almost 22 degrees to gain the proper driveshaft angle, and still retain a decent caster angle. If you just installed some wedges under the leafs, you have improper caster angles, and you will have a wobble that will never go away.
Get you caster under control and you will be able to drive at highway speeds again.
Get you caster under control and you will be able to drive at highway speeds again.
Thread Starter
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Junior User
Joined: Apr 2006
Posts: 53
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From: Santa Rosa CAli
caster
the truck just got back from the driveline shop and got all the angles dieled in for them,
this wouldnt fix caster,
And new shocks on all corners and stearing staibilizer too
to fix caster is the best way to rotate the tubes to the pumkin? Or to cut the perches and turn the whole thing, right now it sits dead level to stck, so i thought there was no issues
thanks and sorry for sounding like a dumb, ****
this wouldnt fix caster,
And new shocks on all corners and stearing staibilizer too
to fix caster is the best way to rotate the tubes to the pumkin? Or to cut the perches and turn the whole thing, right now it sits dead level to stck, so i thought there was no issues
thanks and sorry for sounding like a dumb, ****
Post Fiend
Joined: Jul 2006
Posts: 6,948
Likes: 44
Thats correct, the outer "C"'s will have to be cut and turned. As I mentioned my truck with 44's has been turned in excess of 20 degrees.
For this much heigth, you cant use a wedge large enough to correct the driveline issues. This wedge would have to be over 3/4 of an inch thick and this would not allow the indexing pin to penetrate the spring perch. This means the spring could slide right off. Though you probably could attach it right to the spring pack itself, it would have to clamp at a pretty crazy angle, and coule compromise the alignment pin itself.
Rotating the axle foward in this method changes caster in a huge way, and in most cases makes the steering too fast, and eny bump will give you the wiggles. You will drive down the road shaking like that shopping cart that nobody wants to get.
For the same reason that the shopping cart has a wobbly wheel, trucks shake like crazy.
Poor caster........
