[Shotimes] HELP: Jitter at steering wheel, major car shake now

[Donald Mallinson]

Other things to check include the CV joints, but maybe more 
possible is a bad belt in a tire, it could cause the low 
speed wobble, but be OK at high speed, and it can get worse 
over time, sometimes a short time.

Try rotating the tires front to back and see if it changes.

Don Mallinson
>>My 94 SHO ATX w/ 137K mls has steering wheel jitter at low speeds (under
>>45
>>mph) but the wheel is very solid and steady at high speeds.
>>When I let go the wheel at low speeds the car stays straight but the wheel
>>jitters left to right, not a whole lot, perhaps .5 to 1 inch.
>>When I had the car off the ground I tried moving the front wheels (top and
>>bottom) vertically, there was no play.>
>>---Today---
>>The car has gotten worse.  It has a study vibration at highway speeds.
>>At very slow speeds 10mph when coming to a stop the car shakes slowly side
>>to side.>
>>Is the steering box going bad? I checked the lug nuts on the car and they
>>are tight.