By the way, I got my original brilliant idea from having a protrans apart from a pro nostalgia car. It seemed like a great idea, but they must make sure they use the correct drum.

Also supposidly because the direct drum is a dynamic apply, the waffle grooves cut in the clutches allow it to relieve the fluid between the plates. That's why the direct clutches are waffled and the rear clutches are not. The rear clutch is on in all forward gears so it never really gets a dynamic apply (unless you neutral slam it of course lol . . )