Front end shakes bad when hits bump

[big buck]

Goes down the road great untill you go over 60 mph and hit a bump then the front end shakes and shimmys bad until you slow down
replaced steering damper wheel bearing were loose and fixed that
front drive shaft was shot replaced that
tires are balanced help

 

[fishEH]

Swivel ball bearings.

 

[p m]

Panhard rod is a #1 place to look for slop.

 

[fishEH]

Panhard rod is a #1 place to look for slop.

Yeah, that too. Check that and everything else first because its easier than the swivels.

 

[p m]

LOL, that's the #2 reason for [my personal] #1 ranking.

 

[sir]

Swivel pin preload for sure.

 

[calebbo]

I'm doing the swivel pin pre-load now. I just ordered my parts.

 

[TOM R]

Also check steering damper, shocks

 

[Mike_Rupp]

Ignore Tom R. In fact, take the steering dampener off until you get the problem resolved.

 

[TOM R]

for me replacing steering damper was a huge improvement, followed by the beat front springs and shocks, replacing a bad tie rod end helped also,I believe the op is discribing what is referred to as death wobble, I have yet to see one fix for that problem work for everyone, usually seems to be a combination of worn parts, may get lucky and 1 part fixes it, I was just suggesting other items to look at if the problem persists

 

[mgreenspan]

Panhard rod is a #1 place to look for slop.

Yes. Check the bushings on the panhard. Everybody loves to suggest swivel pin preload as the symptoms are the same but I have yet to have to actually deal with that on a Rover ever and aside from a few rando beaters they are all I've owned since 2004. I have had to replace worn/disintegrated bushings numerous times.

 

[fishEH]

Ignore Tom R. In fact, take the steering dampener off until you get the problem resolved.

Haha! It's true though. The steering damper only masks the real culprit.

 

[Mike_Rupp]

Haha! It's true though. The steering damper only masks the real culprit.

Tom R, replacing the steering dampener doesn't solve the wobble problem. Have you heard the phrase "bury your head in the sand"? When you replace the steering dampener and observe that the wobble has decreased, or gone away, you are falsely assuming that the steering dampener has any role to play other than dampening the movement of the loose part. The steering dampener is just doing it's job. If you experienced an improvement because of a new dampener, that only means that the dampener was bad, nothing else.

Take your dampener off and see if the wobble comes back. If it does, you still have work to do.

 

[TOM R]

Yes my damper was bad and bent also the right front tie rod was bad,these helped but my problem stopped after I replaced the very sagged front springs and bad shocks, I have since replaced all the bushings with urothane don't see where they made much difference but the rubbers were visibly deformed and shot

 

[big buck]

What parts do i need

 

[DiscoBlanco]

If you are doing a swivel pin, you need a swivel pin kit. Most of the major vendors carry a complete kit. If you are doing a panhard rod, you need bushings. Consider Polybush.

The panhard rod bishings will be cheaper and easier to do. You may want to consider doing that first and monitor the results. At this age/mileage they are probably due anyway.

 

[ptschram]

What parts do i need

Upper swivel pin bushings
Upper swivel pins
Lower swivel pin bearings
Assorted shims
Swivel ball seals
Stub axle gaskets
Hub seals
Wheel bearings
drive flange gaskets

About $200
Parts in stock, but by the time my day comes to a close, I've forgotten to look up the exact prices.

 

[Tugela]

Do it. Buy PT's parts and fix that shiz for good. I did a complete swivel rebuild a few months ago. It was not a difficult job and the handling on my Disco has improved noticeably.

Add to PT's list one-shot grease for the swivels, although I believe PT himself is a proponent of oil for that application.

 

[mike97d1]

My D2 did the same thing. On mine it was the panhard rod bushings.
Lay under they truck, have some one move the steering wheel back and forth, if you see any movement at the mounts where the bushings are, replace them.

 

[ptschram]

If you're still driving a DI, let's be honest and recognize that the truck is at least 14 years old now.

Any rubber components are well past their sell-by date.

Wear components like bearings, bushings, etc are also.

We should consider a more holistic approach and replace each of the above components along with shocks, springs, tires, and steering coupling components and tie rod ends.