another death wobble thread...please help

[derrickalda]

I've been having trouble with death wobble.

It happens between 45-55 mph

What I've done...
replaced all bushings
replaced tie rod ends
got an alignment
checked and tightened wheel bearings

my tires are very cupped and ill be picking up a new set tomorrow. I hope this finally fixes things.

Any thoughts....ive been battling this for a while now and if new tires (balanced) don't fix this, i will be clueless1

thanks

 

[ROVER 54]

steering stabilizer ? Did you try rotating the tires front to rear?

 

[antichrist]

That's not what a steering stabilizer is for.
It could be your really bad tires, but I'd lean towards swivel preload, depending on how it occurs. Light swivel preload usually shows up when you hit a bump, or let off the accelerator.

 

[nosivad_bor]

id bet the house on a tire out of balance (not my house though)

 

[delash_81]

How're your front shocks, had a wobble at that speed and did everything you've done except changed them. Did that and cured the problem.

 

[derrickalda]

i don't have a stabilizer, id like to fix this problem before i put one on it. my shocks are new fox 2.0s w/ res.

tell me more about this swivel preload....?
what do i look for and how do i adjust it

 

[derrickalda]

ok i checked my Rave and i understand about the swivel pin/bearings do....looks like a messy job.

so is there a easy way of checking this without taking things apart?

 

[DiscoveryXD]

it's not that hard at all... I replaced the top swivel pin bearings and set the preload a while back and it was easy. It's just a matter of a little guess and check with the right set of shims to set the preload.

 

[ptschram]

If the truck has enough miles to need to have the pre-load set, it needs swivel pin bearings and all the rest.

Everybody is afraid of swivel pins, but they're not that bad.

Paying to have a DI aligned is folly!

Oh yeah, X2 on the shocks.

 

[DennyDoler]

Another quick thing to check are the bolts for the panhard bar. They need to be very tight. If you can move the bar at all when at rest then tighten them up till it doesn't move any more.

 

[Andrew Homan]

I just rebuilt my front swivels. The bearings were toast. Replaced upper pins and all the bearings and seals. Not to hard plus PT save my bacon with a usedABS sensor, mine was destrroyed by the upper pin bearings. Drives great.

 

[derrickalda]

panhard bar bolts are good, and i replaced these stupid swivel pins and nothing

question....

i currently don't have a stabilizer, and if i put one on will it solve the problem? i was waiting to order a new one for the front until i fix this wobble problem.

i haven't put my new tires on yet either.....i will tomorrow...i got busy

 

[Mongo]

it will mask the problem, not solve it

 

[antichrist]

i currently don't have a stabilizer, and if i put one on will it solve the problem?

See post number 3.

 

[Steve Rupp]

my money is on a bad wheel or tire if it happens at a specific speed. Bump wobble is usually caused by loose swivel preload.