Bill,
I just posted the below on a clutch forum question.. so if you're swapping transmissions / replacing clutch or not I would check the clutch finger depth before I put in the transmission. Here's my advise below.
When replacing the cluth you have to adjust the clutch fingers to 5/8" .625 from the top of the clutch cover to the finger. you can use a caliper depth gauge with a straight edge or I use a quick fixture I made to set and adjust them out of wood with a small 5/8 block that rest on the clutch finger. adjust to where it just touches... use a feeler gauge to ensure correct depth. Please note that ALL clutch pressure plates, new or old need to be adjusted. using a new clutch disc will effect the depth as well. The rebuilders really don't set these accurately and as I said, the clutch disc and flywheel can effect the distance. That will ensure that you have a good smooth clutch and that all fingers are contacting at the same time. You have to do this with the transmission out....
However, I have done this with a 3/8 drive socket with a string through it to adjust some fingers in the past. You have to be schooled at this and use the right socket dimension ( they will vary) between the throwout bearing and clutch finger . Do them one at a time and rotate each time for the next finger up. This is not as good as the dial depth or fixture but it will do the job in a pinch if need be.
After all is well with that ( whatever method you use) you can then set your clutch free play to 1-1 1/2 inches. You must ensure that your throwout totally disengages.
Check to make sure your return spring is not sprung and in good shape ( on throwout hub).
Good luck!
Larry S
St. Charles, MO