1990 Gt..Rear End Wobble Trouble. Help!

All I can think of is your torque boxes are begining to fail....jack up that car and get a good look under there....probably should be real careful driving until u find the problem.

You mean the rear end, or the rear of the car? Have someone follow you and look to see if it's the actual rear end, or if it looks like it's the wheels. That could be a C clip that's come out, allowing the axle to move in and out making the rear wander around.

Thanks for the help. I know the guy I bought it from said that they drag raced it a good bit so I'm sure something is going wrong. I'll take a look. It's the back end of the body that seems to wobble. Just like if two people stood on both sides of the car and pushed it side to side.