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AUTOMATIC TRANSMISSION IDENTIFICATION

 
 

PONTIAC

 

Tempestorgue

 
1962
1
Code Prefix
1963
2
Code Prefix
4-195 No stripe 4-195  
V8-215 White stripe
on governor
V8-326  

Super Hydra-Matic

3
1962-64
1964
2 Bar. carb PS 421
High Output Engine
PCS
3 Carburetors PAS    
4 Bar. carb PBS    
Economy Engine PES    

Roto Hydra-Matic 375

4
1962
1963
Economy Engine PE Tri-Power
4 Bar. carb
PA
425A Engine
Tri-Power, Police
PA Catalina
4 Bar. carb
PB
4 Bar. carb PB 2 Bar. carb PE
Except above P Tri-Power
4 Bar. carb Heavy duty
PAH
1964
2 Bar. carb
Heavy duty
PEH
389 Engine
2 Bar. carb, High compression
P Low Compression Eng
Export
P
389 Engine
2 Bar. carb, Low compression
PE    
389 Engine
4 Bar. carb, Catalina
PB    
389 Engine
4 Bar. carb, Grand Prix
PG    
421
Catalina
PAH    
421
High Output Engine
PC    
2 Bar. carb
Low compression, Heavy duty
PEH    
All others
Heavy duty
PAH    

Tempest/ Pontiac Two Speed

5, Buick Super Turbine 300
1964
1965
V6
Air cooled
20 V6
Air cooled
20
V8
Water cooled
30 V8
Water cooled
30
  V8-326
High Output Eng
31
V8
G.T.O
40
1966
1967
L6
1 Bar carb
LA L6
1 Bar carb
LA
L6
4 Bar carb
LB L6
4 Bar carb
LB
V8
2 Bar carb
MA L6
1 Bar carb, A/C
LD
V8
4 Bar carb
MB V8-326
2 Bar. carb
MA
V8
G.T.O
NA V8-326
4 Bar carb
MB
V8
A/C, A.I.R
MC V8-326
A/C, A.I.R
MC
1968
1969
6-250
1 Bar carb.
LA 6
W/ 1 Bar carb Tempest
LA
6-250
4 Bar carb
LB 6
W/ 1 Bar carb., A/C Tempest
LD
6-250
1 Bar carb. A/C
LD 6
W/ 1 Bar carb Firebird
LF
6-250
1 Bar carb. Firebird
LF 6
W/ 1 Bar carb., A/C Firebird
LH
6-250
4 Bar carb Firebird
LG V8-350
2 Bar. carb.
MA
V8-350
2 Bar. carb.
MA V8-350
2 Bar. carb. A/C
MC
V8-350
4 Bar. carb.
MB  
V8-350
2 Bar. carb. A/C
MC
1970
(1970-1973)*
6-250 EB
V8-350
Tempest
EA
V8-350
Catalina
EC

GM Turbo Hydra-Matic /375/400

4, Buick Super Turbine 400
1965-66
1967
3 Carburetors PA V8-400
2 Bar. carb
PB
V8-389 PB V8-428
4 Bar. carb
PC
V8-421 PC V8-400
4 Bar. carb
PD
Heavy duty Unit PH V8-400
4 Bar. carb Grand Prix
PG
V8-421
Exc. 2+2
PG V8-400
Heavy duty
PH
1968
V8-400
G.T.O 4 Bar. carb
PS
V8-400
2 Bar. carb.
PB V8-400
G.T.O 2 Bar. carb
PT
V8-400
4 Bar. carb Grand Prix
PG
1969
V8-400
Ram Air GTO, Firebird
PQ V8-350
2 Bar. carb. Firebird, Tempest
PV
V8-400
2 Bar. carb.,GTO
PT V8-350
H.O., Firebird, Tempest
PS
V8-400
4 Bar. carb., GTO, Firebird
PX V8-400
2 Bar. carb.
PB
V8-400
4 Bar. carb., A/C, Firebird
PY V8-400
2 Bar. carb., GTO, Grand Prix
PT
V8-400, 428
Heavy duty
PH V8-400
4 Bar. carb., Grand Prix
PW
V8-428
Single Exhaust
PA V8-400
4 Bar. carb., GTO, Firebird
PX
V8-428
4 Bar. carb. High Perf.
PC V8-400
Ram Air GTO, Firebird
PQ
1970
V8-428
H.O.
PC
V8-400
Pontiac
PB V8-428
Bonneville
PH
V8-400
Ram Air GTO
PD V8-428
H.O. Grand Prix
PR
V8-400
Tempest, Grand prix
PT
1971
V8-400
4 Bar. carb., Grand prix
PW V8-400
Pontiac
PB
V8-400
2 Bar. carb., Firebird
PF V8-400
Pontiac
PD
V8-400
Sport option
PX V8-400
2 Bar. carb., Police & HD
PH
V8-400
Ram Air H.O.
PQ V8-400
2 Bar. carb., GTO, LeMans,Firebird
PT
V8-455
Exc.H.O. Pontiac
PA V8-400
4 Bar. carb., GTO, LeMans, Firebird, Grand Prix
PX
V8-455
H.O. Pontiac
PC V8-400
4 Bar. carb., GTO, LeMans,Firebird
PY
V8-455
Heavy duty Pontiac
PH V8-455
Pontiac
PA
V8-455
H.O. Tempest, Grand Prix
PR V8-455
4 Bar. carb., Dual Exhaust Pontiac
PC
  V8-455
Pontiac
PF
V8-455
4 Bar. carb., Police &HD
PH
V8-455
H.O. GTO, LeMans,Firebird
PQ
1972
V8-455
4 Bar. carb., GTO, LeMans,Firebird
PR
V8-400
Wagons
PA V8-455
4 Bar. carb., GTO, LeMans, Firebird, Grand Prix
PW
V8-400
4 Bar. carb.
PB
1973
V8-400
2 Bar. carb.
PD V8-350
2 Bar. carb. Pontiac
PF
V8-400
4 Bar. carb., LeMans, Firebird
PG V8-400
2 Bar. carb. Wagons
PA
V8-400
2 Bar. carb., LeMans,Firebird
PT V8-400
4 Bar. carb. 6
PA
V8-400
4 Bar. carb., Grand Prix
PX V8-400
4 Bar. carb. Pontiac
PB
V8-455
2 Bar. carb., Pontiac
PA V8-400
2 Bar. carb. Pontiac Exc.Wagons
PD
V8-455
4 Bar. carb., Pontiac
PC V8-400
4 Bar. carb., LeMans, Firebird, Grand Am
PT
V8-455
H.O. LeMans,Firebird
PQ V8-400
2 Bar. carb., LeMans, Firebird, Grand Am
PT
V8-455
4 Bar. carb., Grand Prix, LeMans
PR V8-400
4 Bar. carb., Grand Prix
PX
  V8-455
4 Bar. carb., Pontiac
PC
V8-455
4 Bar. carb., Police
PH
V8-455
SD LeMans, Firebird, Grand Am
PQ
1974
V8-455
4 Bar. carb., LeMans, Firebird, Grand Am
PR
V8-400
2 Bar. carb. Wagons
PA
1974
V8-400
4 Bar. carb. Police & HD
PA V8-400
4 Bar. carb., LeMans, Firebird CA
PL
V8-400
4 Bar. carb., Pontiac
PB V8-400
4 Bar. carb., Grand Prix
PX
V8-400
2 Bar. carb., Pontiac Exc. CA
PD V8-455
4 Bar. carb., Pontiac
PC
V8-400
2 Bar. carb., Pontiac CA
PF V8-455
4 Bar. carb., Police
PH
V8-400
4 Bar. carb., LeMans, Firebird Exc. CA
PG V8-455
SD Firebird
PQ
V8-400
4 Bar. carb., LeMans, Firebird CA
PW V8-455
4 Bar. carb.,LeMans,Grand Prix
PR
V8-400
2 Bar. carb., LeMans, Firebird Exc. CA
PT V8-455
4 Bar. carb., Firebird
PZ

Turbo Hydra-Matic /250/ 350/ 375B

7
1969
1970
6-250
1 Bar carb Tempest
JA 6-250
Tempest
JE
6-250
1 Bar carb Firebird
JB 8-350
Tempest
JF
6-250
4 Bar carb Tempest
JC 8-350
Catalina
JU
6-250
4 Bar carb Firebird
JD
1972
V8-350
2 Bar. carb., Firebird, Tempest
JF 6-250 JE
1971
8-307 SB
6-250 JE 8-350 MA
8-350
Exc. Below
MA
1974
8-350
Catalina
ML 6-250
Firebird, LeMans
JE
1973
6-250
Ventura
TZ
6-250 FA, JE 8-350
2 Bar carb, W/2.73 or 2.93 rear axle late
MA
8-350
2 Bar carb
MA 8-350
W/3.08 rear axle late
ME
8-350
W/2.93 rear axle late
MC    
8-350
W/3.08 rear axle late
ME    
       
   

1- Not interchangeable. Primary difference are found in the governor, TV spring, Pressure regulator, and downshift timing valve.

2- Not interchangeable. Primary difference are found in the number of plates in the clutch pack, valve body, and modulator.

3- Prefix and serial # located on plate on lower left corner of case rear face.

4- Prefix, year, and serial # located on plate on left side

5- Prefix, year and serial # located on; 1964-65 Metal tag, 1965-67 Stamp on servo cover

6- Late production 1973 Pontiac trans have a # 2 between codes letters

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

A/C- Air Condition

A.I.R -Air Injection Reactor

* 1970-73 all are Chevrolet Powerglides.

No ID code 71-73. Use serial # for parts ordering. Unit number located on right rear vertical oil pan surface.

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