Reply to "Reverse grinds Clutch or Shift linkage?"

I guess that I am somewhat safe if I qualify my answer as saying that it is my opinion that...

Yes I would think that the clearances would have to be measured when it is hot or when the unit is malfunctioning.
I may be spelling it wrong but the term is Dercel or Marcel or Duracell or Marcel Merso.
One of them gotta be right...too much crap in my head. I gotta put stuff back where it belongs. My mother was right. I hope it isn't going to be a written test. I need multiple choice.
That is the curvature of the spring-metal portion of the clutch disc at no load.
It is there to aid in releasing the disc from the face of the flywheel and reduce the chatter in a street clutch.
If the disc has none then it is a competition clutch and has different characteristics.
It sounds like your discs have none.

I would have to think that the non syncro gears, (limited to just the rear in the Pantera) would require more travel (clearance) to release.

My DN+5 loved to grind reverse. I learned to push it into 3rd gear before reverse and it had the tendancy of slowing down the spinning of the neutral shaft and alighning reverse (synchronizing it).

Try that in the Pantera first. Maybe it will save you a lot of needless grief?