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1953 - 1967 Corvette Specification Guide
(1953-67 Transmission Identification Codes)


1953-54
Transmission Identification Codes
LV 1953 Powerglide built at Cleveland, prior to June 30, 1953
C Powerglide, built at Cleveland, after June 30, 1953

 

1955-61 Transmission Identification Codes

C Cast-iron Powerglide, built at Cleveland
S 3-Speed, built at Saginaw
W 4-Speed, built at Warner Gear Division

1962 Transmission Identification Codes
SU Corvette Close-Ratio 3-Speed, built at Saginaw
B Aluminum Powerglide, built at Toledo
W 4-Speed, built at Warner Gear Division

 

 

   Tag Code*

Gears Used

   K 2.54 1.92 1.51 1:1
   J, L or M 2.20 1.66 1.31 1:1
   J-J 2.54 1.89 1.51 1:1
   B-B, C-C or D-D 2.20 1.64 1.51 1:1

* Tag located under the lower front side cover bolt on Warner 4-Speed transmissions will be stamped with a letter or letters to identify internal gears.

1963 Transmission Identification Codes
S 3-Speed, built at Saginaw
P 4-Speed (late-1963), built at Muncie
T Aluminum Powerglide, built at Toledo
W 4-Speed (early-1963), built at Warner Gear Division

 

   Tag Code*

Gears Used

   Q-Q 2.54 1.89 1.51 1:1
   R-R 2.20 1.64 1.31 1:1
   S-S 2.20 1.64 1.31 1:1
   T-T 2.20 1.64 1.31 1:1

* Tag located under the lower front side cover bolt on Warner 4-Speed transmissions will be stamped with a letter or letters to identify internal gears.

1964-1967 Transmission Identification Codes

S 3-Speed, built at Saginaw
P 4-Speed , built at Muncie
T Powerglide, built at Toledo

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