Special Tools - Pontiac Grand Prix Service Manual

TURBO H Y D R A - M A T I C (M-38) T R A N S M I S S I O N
CONTENTS O F THIS SECTION
SUBJECT PAGE SUBJECT PAGE
Towing
. . . . . . . . . . . . . . . . . . . . .
Transmission and Vehicle Identification
Numbers
. . . . . . . . . . . . . . . . . . .
Periodic Service Recommendations
. . . . .
Transmission Fluid
. . . . . . . . . . . . .
Adjustments with Transmission in
Car
. . . . . . . . . . . . . . . . . . . . . .
Shift Control and Back Drive Linkage
. . . . . . . . . . . . . . . .
Adjustments
Neutralizer Switch Adjustment
. . . . . . .
Detent Cable Adjustment
. . . . . . . . . .
Minor Service and Repairs
. . . . . . . . . .
Fluid Level
. . . . . . . . . . . . . . . . .
Checking Procedure
. . . . . . . . . . . . .
Fluid Capacity
. . . . . . . . . . . . . . . .
Draining and Refilling Transmission
. . .
Valve Body Assembly
. . . . . . . . . . . .
Governor Assembly
. . . . . . . . . . . . .
Manual Shaft. Range Selector Inner Lever
and Parking Linkage Assemblies
. . . .
Intermediate Clutch Accumulator Piston
Assembly
. . . . . . . . . . . . . . . . .
Vacuum Modulator and Modulator Valve
Assembly
. . . . . . . . . . . . . . . . .
Extension Housing Oil Seal
. . . . . . . . .
Speedometer Driven Gear Assembly
. . . .
Transmission Removal and Installation
. . .
Transmission Disassembly
. . . . . . . . . .
Removal of Converter and Modulator
. . .
Removal of Extension Housing, Speedo
Drive Gear and Governor
. . . . . . . . .
Removal of Valve Body Assembly
. . . . .
Removal of Oil Pump and Internal
Components
. . . . . . . . . . . . . . . .
Overhaul and Inspection
. . . . . . . . . .
TRANSMISSION
TOWING
If the transmission. drive line or axle do not have
a malfunction. the vehicle may be towed in neutral.
with steering column unlocked. at speeds up to 35 mph
.
The distance should not exceed 50 miles
.
For higher
speeds or extended distances. it is recommended that
the propeller shaft be disconnected or the rear wheels be
off the ground.
TRANSMISSION IDENTIFICATION
Governor Assembly
. . . . . . . . . . . . .
7G-17
. . . . . . . . . . . .
Valve Body Assembly 7G-19
. . . . . . . . . . . . .
Oil Pump Assembly 76-22
Direct Clutch Assembly
. . . . . . . . . . .
76-28
. . . . . . . . .
Forward Clutch Assembly 7G-30
Sun Gear and Sun Gear Drive Shell
. . . . . . . . . . . . . . . . .
Assembly
76-34
Low
&
Reverse Roller Clutch Support
. . . . . . . . . . . . . . . . .
Assembly 76-35
Input Ring Gear
. . . . . . . . . . . . . . .
7G-36
Output Carrier Assembly
. . . . . . . . .
76-36
. . . . . . . . .
Reaction Carrier Assembly 76-36
Output Ring Gear and Output Shaft
. . . . . . . . . . . . . . . . .
Assembly 76-57
Transmission Case
. . . . . . . . . . . . .
76-37
. . . . . . . . . . . . .
Extension Housing 76-38
. . . . . .
Intermediate Overrun Brake Band 7 ~ - 3 9
. . . . . . . .
Vacuum Modulator Assembly 70-39
Manual and Parking Linkage
. . . . . . . .
7G-40
. . .
. . . . . . . . .
Converter Assembly
,
7G-40
. . . . . . . . . .
Transmission Reassembly 7G-41
. . . . . . . . . . . . . . . . . . .
General
7G-41
Installation of Internal Components and Oil
Pump
. . . . . . . . . . . . . . . . . . . .
7G-42
Selecting Proper Band Apply Pin
. . . . .
76-45
Installation of Parking Linkage. Valve
Body. and Oil Pan
. . . . . . . . . . . .
7G-46
Installation of Governor. Speedo Drive
Gear and Extension Housing
. . . . . . .
76-47
Installation of Modulator and Converter
.
7G-48
Installation of Transmission Assembly
. .
76-48
Transmission Oil Pressure Checks
. . . .
76-50
External Oil Leaks
. . . . . . . . . . . . .
7G-51
Torque Specifications
. . . . . . . . . . . .
76-52
Special Tools
. . . . . . . . . . . . . . . . .
76-53
accumulator cover. which is located on the middle
lower right side of the transmission case (Fig
.
7G.2)
.
The vehicle identification number is stamped on the
lower left side of the case. next to the manual shaft
.
The application of each transmission model is as
follows:
JA
.
250
OHC6
. 1 Bbl
.
(Tempest)
.
JB .
250 OHC6
.
1 Bbl
.
(Firebird)
.
JD'- 250 OHC6
.
4 Bbl
.
(Firebird)
.
NUMBER AND VEHICLE IDENTIFICATION
. I F
.
350 cu
.
in
.
.
2 Bbl
.
(Tempest & Firebird) except
NUMBER
A/C
.
A production day and shift built number. transmission
Whenever the 1-2 accumulator cover is replaced. it will
model and model year are stamped on the 1-2
be necessary to stamp transmission identification