Pontiac tempest 1968 Service Manual page 382

7A-1
THREE SPEED DEARBORN MANUAL TRANSMISSION
CONTENTS OF THIS SECTION
SUBJECT PAGE
Description . . 7A-1
Periodic Service '. 7A-1
On Car Adjustments
Linkage Adjustment - Column Shift . . . 7A-1
Linkage Adjustment - Floor Shift . . . . 7A-1
Minor Repairs
Extension Housing Bushing and Oil
Seal Replacement 7A-1
Major Repairs
Transmission - Remove 7A-2
Input Shaft Seal Replacement 7A-2
Transmission - Disassemble . . 7A-6
SUBJECT PAGE
Shift Lever Shaft or Seal Replacement -
Mainshaft Removed 7A-7
Input Shaft Bearing Replacement -
Mainshaft Removed . . 7A-8
Mainshaft - Disassemble 7A-8
Transmission - Assemble
Mainshaft - Assemble 7A-8
Transmission - Assemble 7A-10
Transmission - Install in Vehicle 7A-13
Specifications 7A-13
Special Tools . . . . 7A-14
DESCRIPTION
This transmission is of the fully synchronized
type with all gears, except the reverse gear, being in
constant mesh.
It is used as the standard 3-speed for Pontiac and
a heavy duty 3-speed for Tempest and Firebird.
PERIODIC SERVICE
TRANSMISSION
No periodic service of the transmission is r e ­
quired except checking for leaks and proper lubri­
cation level every 6000 miles.
If there is evidence of leakage, leak should be
corrected and lubrication added as needed. Refill
capacity is 2 3/4 pints.
Use SAE 90 Multi-purpose Gear Lubricant. No
special additive to this lubrication is required or
recommended.
SHIFT CONTROL
No periodic service of the shift control is r e ­
quired. Certain parts are lubricated on assembly
and require further lubrication only when parts be­
come dry and sticky.
ON CAR ADJUSTMENTS
LINKAGE ADJUSTMENT-COLUMN SHIFT
(Fig. 7 A - I J
1. Align upper and lower gearshift levers on
steering column assembly in neutral position by in­
serting gage pin in hole as shown in View A.
2. Loosen clamp screws at transmission gearshift
control rods.
3. Position levers on transmission in neutral.
4. Retorque clamp screws to 20 lb. ft. and check
complete shift pattern.
LINKAGE ADJUSTMENT-FLOOR SHIFT
(Figs. 7A-2, 7A-3, 7A-4)
1. Position selector lever in neutral position.
2. Loosen trunnion jam nuts on transmission gear­
shift control rods.
3. Place transmission lever and bracket assembly
in neutral position a n d install gauge p i n as
illustrated.
4. Position levers on transmission in neutral.
5. Retorque trunnion jam nuts to 30 lb. ft.
6. Remove gauge pin and check complete shift
pattern for freeness of operation.
MINOR REPAIRS
EXTENSION HOUSING BUSHING AND
OIL SEAL REPLACEMENT
1. Remove drive shaft.