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Pontiac Turbo-Hydramatic Transmission


Case, Extension, Accumulator & Governor


Illustrated Parts Break Down

Cut Away View


Converter, Pump, Intermediate & Direct Clutch

Mainshaft, Fwd Clutch Low & Reverse Clutch & Output Shaft

Valve Body, Servo Piston & Accumulator

Parking Lock & Range Selector


1) Case assy., Trans

2) Retainer, Intermediate clutch accumulatorpiston cover

3) Cover, Intermediate clutch accumulator piston

4) Seal, Intermediate clutch accumulator piston cover

5) Spring, Intermediate clutch accumulator piston

6) Seal, Intermediate clutch accumulator piston - outer

7) Piston, Intermediate clutch accumulator

8) Seal, Intermediate clutch accumulator piston - inner

9) Valve, Vacuum modulator

10) Seal, Vacuum modulator to case

11) Retainer, Vacuum modulator

12) Bolt, Vacuum modulator to case (5/16"-18 x 11/16")

13) Modulator, Vacuum

14) Seal, Case extension to case

1969-72 Pontiac Turbo-Hydramatic Transmission (M-38) Exploded View

15) Extension, Trans. case (Part of #17)

16) Bushing, Case extension (Also Part of #17)

17) Extension assy., Trans. case

18) Seal, Case extension oil

22) Sleeve & Seal, Speedo driven gear

19) Retainer, Speedometer driven gear sleeve

20) Bolt, Sleeve retainer

21) Seal, Speedo driven gear sleeve to extension

23) Gear, Speedo driven

24) Bolt, Valve body

25) Pin, Dowel (5/16" x 1")

26) Pin, Governor weight (Part of #27)

27) Governor assy., Trans

28) Seal, Governor cover to case

29) Cover, Governor

30) Retainer, Governor cover

31) Screw & Washer, Oil pan

32) Pan, Oil

33) Gasket, Oil pan

34) Screen, Oil pump pressure hole

35) Plug, Line pressure check

36) Pipe, Trans. vent


The exploded view illustrates individual part placement in the assembly.