Crow,
Apparently you are new to Deere. Accurate information is nearly impossible without:
1) tractor serial numbers
2) engine serial numbers
3) any part numbers on the castings
I'm showing 4 different flywheels for the 5020. Please explain your problem.
I think you are the one who is new to Deere because a flywheel from a 1968 5020 will fit a 6030, 8630, 8640, 8650 [all big blocks] and as far as my problem, read my first post again.