New Car Pre-Delivery Inspection; Periodic Service; Shock Absorbers; Cross Section O F Typical Rear Axle And Differential - Pontiac Grand Prix Service Manual

4A-2
1969
PONTIAC SERVICE MANUAL
mounting dimensions and/or in material are used. The
case usage is affected by engine transmission combina-
tions. When changing ratios, be sure to use the proper
differential case and axle shafts (SEE Fig. 4A-4D).
NEW CAR PRE-DELIVERY INSPECTION
TORQUE
Check torque specifications at rear axle.
1. Tighten all rear suspension control arm bolts to 110
lb. ft. torque and nuts 'to 80 lb. ft. torque (Pontiac,
Tempest and Grand Prix).
2. Tighten rear shock absorber to axle housing nut to
65 lb. ft. torque and shock absorber to frame bolt to 20
lb. ft. torque.
3. Tighten universal joint U-bolt nuts to 12 lb. ft.
torque (with lock plates) or 14 lb. ft. torque (with lock
washers).
LUBRICATION
Check differential oil level and, if necessary, add
sufKcient amount of multi-purpose hypoid gear lubri-
cant.
PERIODIC SERVICE
LUBRICATION
Lubricant change in the differential is not recom-
mended bless repair work is being done. The
differential should be checked for leaks at each chassis
lubrication. If there is evidence of leakage, the leak
should be corrected and lubricant added if needed.
Lubricant level should he even with hottom of filler
plug hole. Rear axle capacity is 4 1 /2 pints for Pontiac:
3 pints for Tempest, Firebird and Grand Prix.
Use multi-purpose hypoid gear lubricant in the
standard differential. Because of the importance of
using factory recommended lubricant, a container of
this lubricant is furnished with each service ring gear
and pinion set or differential camer assembly. This
lubricant is also available through regular parts
'
channels. See Section 4B for Safe-T-Track Lubricant
Recommendations.
SHOCK ABSORBERS
Give visual inspection for leaks andjounce car at each
lubrication period to see that shock absorbers are in an
operative condition. If inoperative or if leaks are
COMPANION FLANGE
DRIVE PlNlON
WHEEL BEARING
PlNlON FRONT
DRIVE PlNlON
REAR BEARING
PlNlON SHAFT
EARING RETAINER LOCK SCREW
OUTER GASKET
EEL BEARING
BEARING RETAINER
INNER GASKET
B R A K E DRUM
1
Fig.
4A-2
Cross Section o f Typical Rear Axle and
Differential