Reply to "clutch Release bearing"

There are two different types of diaphragm clutches; the Centerforce is a bent-finger, while GM uses a straight finger pressure plate that also takes a radius-face throwout bearing. Using a straight-finger pressure plate with a flat-face throwout give a "stepped" or jerky feel to the clutch action.

So yes- a Centerforce can use a std flat face Pantera throwout bearing with no trouble. And the only time I found little clearance was on a Pantera with an aluminum flywheel. Some alloy flywheels have a thicker flange at the crank area for more strength, which moves the clutch away from the block. Clearances in the clutch area are pretty tight under the best of circumstances.