Ok, When I hit a bump going about 60 and I am turning (like around a bend on the hwy), my truck shakes violently side to side and up and down.

WHAT I HAVE HAD CHANGED:
1. TRAC BAR
2. TIE RODS AND ENDS
3. Ball Joints
^ alignment then rotate after these were done. Still the same thing, after the rotate, things got a bit worse.
^^ Then tire balance and rotate again. Still the same thing.
4. Shocks and alignment. Mechanic (different one than the first alignment) said my alignment was WAY off.


My steering stabilizer is an aftermarket Rancho that I installed 1 year and 8K miles ago. I still have the stock one and it still has very good resistance.

Do you guys think I should swap the stock steering stabilizer back on there? Could that be the problem?

When this shakes, I am not fighting the steering wheel, but we all know that there is some slop in the stock system. So maybe it is the stabilizer.

 

Oh, the last mechanic I went to (good mechanic, takes care of my mom) told me that my rear axle is .5* off from the box.

Hoiw the heck could that happen aside from an accident? The truck has a clear history.

 

half a degree? That is probably still within factory tolerance.....

I don't think the steering stabilizer is a factor here.....

Check the steering box mount bolts, and the frame around them for cracking. Might wanna park someone in the drivers seat, and key on, engine off, have them crank the wheel from side to side, and see if anything moves that really shouldn't.

 

First, Carfax is only good if someone makes an insurance claim-if it's under $1000, I never do. And I rarely take my new cars to the dealer unless I know in advance it'll be covered by the warranty. But, when my son ripped the bottom of the radiator out on my 07 PT Cruiser jumping through mud puddles on a dirt road, you can bet your sweet @$$, the insurance company and thus Carfax never knew. So Carfax misses probably half the repairs done to vehicles-better than nothing, but not 100% historically accurate. Second, if that truck has spent a lot of time on very rough pavement or washboard dirt roads, that's nore than enough to jiggle the bed or axle to one side or the other. When I was a Ford tech in Idaho ranch country, we'd see 1 y/o F250's come in with their axles pulled 2" to the side. Third, that sounds like a damaged tire-inner tread wall separation. I have seen some with tread separation that only bounced when turning or under a heavy load.

 

Thanks, I will try that today!

 

Hmmm, First, I do need new tires. Second, THis started when I was moving from Indiana to New York. I had the bed loaded and was pulling a trailer. 2900 lbs total. (1800 in bed).

When I had the tires balanced, they said they were all out of whack. So maybe I need new tires. Thanks Mantis!

 

I did everything you did to stop my truck from shaking. I ended up putting some cheap street tires on it and the shaking stopped. My tires, BFG Mud Terrains, still had good tread, but they were worn on the inner side causing the violent shaking just like the "Death Wobble."

 

Bingo, Bama! I learned this when I got the steal of the century on an 81 Chrysler New Yorker 5th Ave-the full size, not midsize Diplomat version. In 1992 I went to one of those "tent sales" at a Kmart. There was a beautiful, one owner, loaded to the teeth(leather, sun roof-every single option available), 50k mile, luxury car for $1000-which was about 1/3 what it was worth. I test drove it and all was good until getting up to 40 mph. At that point the front end literally bounced and wobbled almost completely off the road. I bought it for $800 and went to a local service station and asked them to look for bent tie rods and such. They said the whole front end was brand new and took the front tires off. The tread wall was split on the inside and a new tire made it smooth as silk. It's the one car I most regret selling.

 

Ok, I am thinking it is the tires, here is why:

1. I moved roughly 3K lbs TWICE before the third miove when this happened.
2. I didn't inflate the rear tires to 55PSI (d rated tires) for first two times. I did onthe third.

I ran 40PSI with the bed loaded from california to arkansas then arkansas to indiana. Indiana to west point was 55 PSI.

I need to get new tires anyway.

Thanks everyone, this really feels like it is the tires when it wobbles. I will let you know when i get a tire inspected.

 

if I had inner treadwall separation, wouldn't my tires be egg shaped and I would feel the vibration all the time?

Not saying it isn't the tires, but I don't think it could be treadwall separation, unless beefier tires makes it harder to see.