833 Transmission won't disengage at stop after 100 miles.


No, just to see how close it is, you can do this on any flat surface . But I don't think you will be able to use a caliper, as the fingers have a curved surface. You can hunt up a deep socket and a crosspiece with a couple of shims and that will get you close.
Alternatively, I guess you could float a flat disc over the fingers and caliper it, adjacent to the fingers. If you you do it as I imagine it,lol, that will get you real close.
you could probably measure it in-car with a magnetic base and a dial indicator set up, and rotating the crank with the spark plugs out. Or you could pull the flywheel, assemble clutch flywheel, and PP and set it on a flat surface plate, and measure it with a height gauge setup.