Don't know how that snap ring that could be installed w/o trans disassemble. I'd try to find info on updated design parts Monday. Either way transmission will need to come out & disassemble to repair. Was as pretty common failure back in the day.
BC 1960 Chevy C10 driver 261 T5 4.10 dana 44 power loc 1949 GMC 250 project in waiting 1960 C60 pasture art Retired GM dealer tech. 1980 - 2022
