So... couple of things already this morning. First is that I am at a loss as to how to properly gauge the throw of the TOB in it's "dissassembled" state - at least by myself. I'll get some help this afternoon because it would seem that (with the stock GM TOB) you need one person to "compress" the TOB to it's
in situ depth while the other person presses the clutch pedal. Without the TOB compressed, pumping the clutch pedal has no effect other than to (eventually - with multiple pumps) pressurize the complete slave to it's full extended (dissassembled at rest) depth.
Second, I pulled the clutch out (leaving the bellhousing in place for simplicity at this point. I didn't see or find anything that stood out to me but I took some pictures of the individual components for your input:
The Flywheel and base ring:
The Pilot Bearing:
