[Lyle]

My stock '93 5.0 EFI w/ T-5 is exhibiting the exact same behavior. The "wobble" or whatever is happening shakes the whole drivetrain, but on ly under those specific conditions. Very aggravating. My set-up has the base Ford Racing Performance Parts clutch, which I believe is not much stouter than the stock unit. I know it has hub springs. It would seem that there must be some inconsistancy in the friction at the slow slip point to cause the shudder, but I don't know what would cause that inconsistancy. Either the flywheel, the clutch disk, or the pressure plate wold have to have some variation, but as all three are round, and presumably uniform, I am at a loss. Any advice will be appreciated.

Lyle