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AUTOMATIC TRANSMISSION IDENTIFICATION

 

OLDSMOBILE

F-85 Hydra-Matic

1
 
1962
Code Prefix
1963
Code Prefix
2 Bar. Carb O562 2 Bar. Carb
Column shift
O563
4 Bar. Carb OD562 4 Bar. Carb
Column shift
OD563
4 Bar. Carb
Console shift
OE562 4 Bar. Carb
Console shift
OE563
Turbo Rocket
Console shift
OX563

Roto Hydra-Matic 375

2
1962
1963
88 Series
Low compression eng
O 88 Series
Low compression eng
O
88 Series
Std. compression eng
OC 88 Series
Std. compression eng
OC
Super 88, 98
Exc. Starfire
OA S8, 88
4 Bar. Carb
OA
Starfire Series OB Starfire, 98 OCH
1964
Starfire, 98
Heavy duty
OHC
Dynamic 88
Low compres eng
O  
Dynamic 88
Std. compres eng
OC
Dynamic 88, S88, 98
4 Bar. Carb
OA
Jetstar I, Starfire, 98 Custom Sport Coupe OB
Dynamic 88
Heavy Duty
OCH
Heavy duty
4 Bar. Carb
OBH

Olds Jetaway

3
1964
1965
V6-F-85 25 V6-F-85 LJ
V8-F-85 35 V8-F-85 MJ
Jetstar 88
2 Bar. Carb
37 V8-F-85
4 Bar. Carb
MK
Jetstar 88
4 Bar. Carb
39 Jetstar 88 MT
Jetstar 88
for export
38 V8
4 Bar. Carb
MU
1966
1967
V6-F-85 LC V6-F-85 LC
V8-330 F-85
2 Bar. Carb
ML 2 Bar. Carb ML
V8-330 F-85
4 Bar. Carb
MK 4 Bar. Carb MK
V8-400
4 Bar. Carb
NJ Delmont 88 MT
V8-330
Jetstar 88
MT    

GM Turbo Hydra-Matic/375/400

2 SUPER TURBINE 400
1965
1966
2 Bar. Carb
Hi compression
OA Ultra Hi perf. Engine OD
4 Bar. Carb OB Jetstar 88 OF
2 Bar. Carb
Lo compression
OC Heavy duty unit OE
Heavy duty unit OE
1968
1967
V8-350
Vista Cruiser
OA
Vista Cruiser OA V8-350
Delmont
OF
Senior Models
2 & 4 Bar. Carb
OB V8-400
Vista Cruiser
OP
Senior Models
Low Compression
OC V8-400
2 Bar. Carb 442
OH
Starfire Engine OD V8-400
4 Bar. Carb, F-85, Cutlass 442
OG

Heavy duty Transmission

OE V8-455
2 Bar. Carb
OC
Delmont 88 OF V8-455
4 Bar. Carb
OB
F-85 V8-400
4 Bar. Carb
OG V8-455
4 Bar. Carb Heavy duty Police
OL
F-85 V8-400
2 Bar. Carb
OH  
Toronado OJ  
1969
1970
V8-350
Vista Cruiser
OA V8-350
Exc. below
OF
V8-350
Delta 88 w/cruise control
OA V8-350
w/cruise control
OA
V8-350
Delta 88
OF V8-455
2 Bar. Carb
Exc. below
OC
V8-400
442 Ram Air
OW V8-455
4 Bar. Carb.,Delta 88
OB
V8-400
442 Exc. Ram Air
OG V8-455
4 Bar. Carb., cruise control
OR
V8-400
4 Bar. Carb Vista Cruiser
OP V8-455
Cutlass Exc. SX
OD
V8-455
4 Bar. Carb., 98
OB V8-455
Cutlass 442 Exc. SX Ram Air
OG
V8-455
2 Bar. Carb Delta
OC V8-455
4 Bar. Carb., Senior models cruise control
OK
V8-455
2 Bar. Carb., Delta, 98
OK V8-455
Vista Cruiser
OK
V8-455
Heavy duty Police
OL V8-455
Police
OL
V8-455
2 Bar. Carb Delta
OR V8-455
442 Ram Air
OW
1971
1972
V8-455
4 Bar. Carb., Supreme
OD V8-350
Vista Cruiser
OA
V8-455
442
OG V8-350
Senior models
OA
V8-455
442 w/ Air induction
OW V8-455
4 Bar. Carb., Cutlass Dual exhuast
OD
V8-455
Vista Cruiser
OA V8-455
4 Bar. Carb., Cutlass W30
OW
V8-455
2 Bar. Carb., Vista Cruiser
OR V8-455
Senior models
OR
V8-455
4 Bar. Carb., Vista Cruiser
OK V8-455
Senior models Dual exhuast
OK
V8-455
2 Bar. Carb., Senior models
OR V8-455
Vista cruiser Dual exhuast
OK
V8-455
Senior models Dual exhuast
OK
1974
V8-455
Delta 88 Single exhuast
OR V8-350
88
OA
1973
V8-455
Cutlass Exc. CA
OD
V8-455
4 Bar. Carb., Cutlass
OD V8-455
Cutlass CA
OW
V8-455
Senior models Dual exhuast
OK V8-455
Cutlass 275HP
OX
V8-455
Senior models
OR V8-455
88 & 98 Single exhuast Exc. CA
OR
  V8-455
88 & 98 Single exhuast CA
OL
V8-455
88 & 98 Dual exhuast
OK
V8-455
Custom Cruiser Exc. CA
OK
V8-455
Custom Cruiser CA
OE

Turbo Hydra-Matic Front Wheel Drive

1969-70
1969-74
Toronado
High Perf. Eng
OM Toronado
Exc. below
OJ
    Toronado
1974 CA
OM

Turbo Hydra-Matic /250/350/375B

4
1969
1970
V8-350 F-85
2 Bar. Carb
JG 6-250 JE
V8-350 F-85
4 Bar. Carb
JL V8-350
2 Bar. Carb
JG
1971
V8-350
4 Bar. Carb Exc. below
JL
6-250 JE V8-350
Ram Air
JO
V8-350
Exc. below
LA V8-350
Vista Cruiser
JM
V8-350
Delta 88
LL
1972
1973
ALL KA, LA
6-250
Omega
JE
1974
V8-350
2 Bar. Carb.,Omega & Cutlass
LH 6-250
Omega
JE
V8-350
4 Bar. Carb., Omega & Cutlass
LA V8-350
Exc. CA ,Omega & Cutlass
LA
V8-350
4 Bar. Carb.,Vista Cruiser
LE V8-350
CA, Omega & Cutlass
LC
    V8-350
Vista Cruiser Exc. CA
LE
     

1- Located on ID plate above filler tube

2- Located on ID plate with year and serial #

3- Located; 1964-65 Metal tag, 1965-67 Stamp on servo cover

4-Production day, shift built, transmission model and model year are stamped on the 1-2 accumulator cover in the middle right side of case

 
 
 
The transmission code decoder reveals the transmission type, engine displacement, plate location and configuration.