I recently switched the auto tranny out of my '89 RS with a 5-speed, and now the whole car vibrates whether the clutch is engaged or not. The flywheel was installed right, and is still good, but it seems like it's off balance. I could use some help figuring this one out.

 

the drive shaft ok? that can cause it.....flywheel is ok? is it an old one resurfaced or what?