Perhaps it ws just the wrong flex plate was installed? Or that the bushing that the flexplate centers on on the crankshaft is missing?

There are a few small parts needed to mount the flex plate and converter, if your missing one it could cause problems.

Kevin


87 Turbo Intercooled Raider, roller cam, torsen rear diff, LSD front diff, lockup auto with modified converter, V6 brakes, low transfer case gears...