Originally Posted by 85CHEVY
I have a 2000 GMC sierra 4x4. Rims are 16x10 with 265/75 BFG all terrains.
The problem, which comes and goes is a violent wobble in the front end which makes the steering wheel shake left and right. This only happens when I go over certain roads and poorly maintained roads in town. It happens at about 45-60 mph. Ive been thinking shocks, tie rods, hubs..?? I have tried wheel balancing several times with no luck.. Haven't had it aligned in about 2 years.. But it seemed to really start after I took it off road a few months back.. Any help would be greatly appreciated.. Dont wana get ripped off by the local places, cuz im not too keen on what causes this particular problem.. Thanks in advance,
Your front steering and suspension should be checked. If you have worn components (ie tie rods, shocks, hubs, etc.) and if they are out of specification, they should be replaced.
If there has been a lift kit installed, often steering geometry would be changed so the appropriate parts would need to be changed followed by a proper alignment.
If your steering has a steering stabilizer (like a shock made specifically for your steering) and it has leaked or no longer functions properly, it should be replaced.
Without looking at the vehicle and getting the measurements from your front end, it sounds like your caster (one of the three main measurements in an alignment) is off. The caster setting in your vehicle assists with your steering's stability. Caster is what allows you to ride a bicycle without your hands. For a more detailed information on your vehicle's alignment, check out "howstuffworks.com". If the measurements are off by a fraction of an inch, you will feel it or wear parts prematurely. If you are not doing the alignment on your vehicle yourself, I would recommend you take it for an alignment to a reputable place.
best of luck