hello, i am part way through a t56 swap, and i have run into a small problem, i have 2 different clutch systems here, and i know one is a stock unit, and another an aftermarket. The issue i am having is the stock unit(which come with the transmission) is that it is .280 thicker.

here are the numbers off of the pressure plates

the stock unit reads 382155-do
it is 1.365 thick at the bolt flanges


the aftermarket reads 382109-d0
it is 1.080 thick at the bolt flanges