i have a 8.2 posi. but im not sure what it fits.numbers on it are m9620899 -----pat#2821090-----can pal. i believe these are right its hard to read some i could be off on couple. i am sure its a 8.2

Those don't seem to be Eaton numbers. If it fits the Chevy 8.2 then it fits '64 to '72.