GM, Nash, Hudson, Willys, Buick Olds and more used the dual range Hydramatic from the 1951 to the 60's, this will not fit the pre 1951 single range hydramatics. This is the side cover gasket. This is a 12 bolt gasket.
REMAN 1981 81 Chevy Citation ONLY Torque Converter Delco Hydra-Matic 8631988
NOS 1956 Pontiac Catalina P/8 Super Hydramatic HT Trans. Throttle Rod GM 521520
NOS 1961-64 Pontiac Catalina P/8 Hydramatic HT Trans Throttle Rod GM 538883
NOS 1961-62 Pontiac Catalina P/8 Hydramatic HT Trans Throttle Rod GM 538789
NOS 1961-62 Pontiac Catalina P/8 Hydramatic HT Trans Throttle Rod GM 521520
NOS 1961-62 Pontiac Catalina P/8 Hydramatic HT Trans Throttle Rod GM 538768