I don’t know. I managed to twist the center out of a fairly high dollar clutch with an over fueled 12 valve Cummins. The automatic is able to soak up some of the shock loads that a torque monster throws at it. What probably added to the demise of mine is that on light loads, the cruise control which was designed for a low torque gas engine acts too aggressively and will cause the truck start buckling. That’s on about 400hp and 900+ ft/lbs torque.
I’m sure those sled pulls didn’t help it either.
Regrettably, high dollar doesn’t always mean high quality. It’s like the industry is trying to influence a move towards automatic shift.