Anyone had a problem with bump steer? When I hit a moderate to good size bump in the road, my truck seems to want to jump sideways a bit. Have had the front end aligned, all front end steering components replaced, new steering box, new radius arm bushings, cant figure this one out. I did put 3/4t springs on the front a few months ago for a 2" lift on the front (also when everything else was done). The truck has 260,000 miles on her, 1994, 4x4, so she is 18 years old, a lot of miles, but still runs great... Wondering if the rear leaf springs might be worn out? Or weak? Or one side a little softer than the other causing this? Dont have a problem replacing them, but dont want to spend the cash if thats not the issue. Anyone else run into this problem? Any suggestions?

 

if its an issue with the front, try getting a steering stablilizer. not 100% sure that it would fix this problem, but could help

 

How old are the shocks on the front?

 

I would say steering stabilizer if you have 31s or bigger. Shocks could be a problem too because with that extra 2" you might be riding on the bump stops inside the shock.

 

Well it actually started before I put the new springs in the front. Shocks were replaced last fall I believe, I just cant figure out what the issue is. I cant tell for sure if its happening due to the front, rear, or both. If I had to pick I would say its the rear, but dont know what would cause it except worn out leaf springs? Or one side more worn out or weaker than the other? I have had a couple leafs broke before and replaced. I think both times were on the left side. Only thing I can think of.. and being it has dual tanks, and the front tank is slightly on the left (I think) plus its generally just me in my truck,.. so slightly more weight constantly on the left side. I dunno, but it has me boggled. No shimmy or shake or anything, drives great except for this slight bump steer issue.

 

bump steer can be started via the front and really magnified by the rear of the truck...

if you want to know if its the rear causing it add weight to the bed... about 500lbs...

mine does it bad but I know its the rear... these trucks, at least mine, are very light... it causes the rear to bounce when the front hits a bump and that sends the rear trying to catch the front and thats the sideways action you feel...

the 4.9L 2wd trucks are very light at 3600lbs and most of the weight is on the front... more than 60% and that really aggravates bump steer...

make sure your rear shocks are good and the springs arent too stiff... the stiffer the springs the more pronounced the issue will be.

In the winter I put 800lbs of sand in my truck and bump steer goes away

 

I would say this sounds about right, although, my question would be, why havent I ever experienced this before in the previous 16 years of owning this truck?