1955 – 1975 NOS Transmission Rear Extension Oil Seal GM # 1386231

This new old stock transmission rear extension oil seal was manufactured by General Motors for use on the following models:

Chevrolet 1955 – 1967 Corvette with 8-cylinder and  A.T.,

Chevrolet 1957 – 1963 Corvette with 4-speed S.T.,

Chevrolet 1962 – 1969 All with 4-speed S.T. except Passenger,

Chevrolet 1962 – 1969 All with P.G or Torque drive transmission except Passenger,

Chevrolet 1965 All with P.G.,

Chevrolet 1966 – 1969 All with P.G or Torque drive transmission,

Chevrolet 1966 – 1975 Corvette with 4-speed S.T.,

Chevrolet 1968 – 1975 Corvette with M38 H.T.,

Chevrolet 1966 – 1975 All with 350 engine and TH 350, 400,

Chevrolet 1955 – 1963 Corvette 8-cylinder with 3-speed S.T.,

Chevrolet 1966 – 1970 Corvette with 3-speed S.T.,

Chevrolet 1971 All with P.G or Torque drive transmission,

Chevrolet 1971 – 1973 Vega All with P.G or Torque drive transmission,

Chevrolet 1971 – 1975 All with 4-speed S.T.,

Chevrolet 1968 – 1975 Corvette with M38 T.H.,

Chevrolet 1973 Nova All with P.G or Torque drive transmission.

Chevrolet  Pickup 1955 – 1959 1/2, 3/4 Ton  with 3-speed S.T.,

Chevrolet Pickup 1955 – 1961 1/2 Ton  3-speed S.T. with D-D,

Chevrolet Pickup 1955 – 1969 1/2 Ton with 3-speed S.T.,

Chevrolet Pickup 1970 Series 10-30 with 4-speed S.T.,

Chevrolet Pickup 1960 – 1965 Series 10-20 with  with 3-speed S.T. except  H.D.,

Chevrolet Pickup 1966 – 1972 All with 3-speed S.T.

Oldsmobile 1961- 1963 F85 with 3-speed S.T.,

Oldsmobile 1962 – 1963 with 4-speed S.T.,

Oldsmobile 1964 F85, J88 with S.T.,

Oldsmobile 1962 – 1970 with 4-speed S.T.,

Oldsmobile 1965 – 1969 with 3-speed S.T. except H.D.,

Oldsmobile 1964 – 1969 with J.T.,

Oldsmobile 1969 – 1974 with TH 350- output shaft to extension,

Oldsmobile 1970 – 1972  F85 Oldsmobile,  

Oldsmobile 1972 – 1973 with TH 375 – output shaft to extension – Model OA,

Oldsmobile 1973 – 1974 with 3-speed S.T.,

Oldsmobile 1975 All Cutlass, Omega (X, A) with TH 350- rear bearing retainer to yoke,

Oldsmobile 1975 88 (B) All 350 engine and TH 375 – case extension- Model OA, OB.

Pontiac 1958 – 1974 All with 3 speed standard transmission,

Pontiac 1964 – 1974 All with 4 speed standard transmission,

Pontiac 1964 – 1969 Tempest with AT,

Pontiac 1972 – 1974 Bonneville, Catalina (B) with M40 HT (PD, PF),

Pontiac 1969 – 1974 All with M38 HT,

Pontiac 1970 – 1973 All with M35 AT.

Replaced by 1243400 on 4/75 

NOTE:  Images show the condition and what is included in the sale.

*This item may be re-packaged to protect it from shelf wear.