I have an 82 Berlinetta that is for bracket racing only. I'm trying to get some input of what maybe causing my steering wheel shake during the first 200' of the 1/4 mile.

The suspension on the car is as follows: Front - Stock Springs, 90/10 struts, stock steering box, and no sway bar. Rear- Stock springs, air bags, aftermarket LCA's, 9" Ford, Modified adustable torque arm. I have had the car checked out (alignment, tie rods, ball joints, bearings, etc.) by two alignment shops, and everything appears in good condition. Also the steering box has a little play but not what would be considered excessive.

The problem occurs when the car launches. Usually the driver side tire comes up about 6", while the passenger front barely raises or stays on the ground. The car tourqes to the right rear heavily(1.46-1.50 60'). During this time the steering wheel shakes fairly hard until the car levels back out about 150'-200' down track. I've been told the front tires also wobble some during this time. The car drives very smooth for the remainder of the pass, including during heavy braking. When I was running slower, I never had this problem.

I'm not sure what the problem is. Any input would be appreciated.

 

Could it be the steering box or where the steering box is mounted to the frame?????