NOS OEM 1956-57 GM Hydra-Matic Transmission Front Sun Gear to Front Internal Gear Steel Thrust Washer GM 8616540, fits:
Cadillac 1956-1957
Oldsmobile 1956 “O” H.T.,
Oldsmobile 1957 with H.T.,
Pontiac 1956-1957 All with C.C. H.T.
Please verify your exact application for fitment.