Pontiac tempest 1968 Service Manual page 158

SAFE-T-TRACK DIFFERENTIAL 4B-9
F i g . 4 B - 1 7 Torquing Case Haif Bolts - Two or Four Pinion
Tempest and Firebird
then be readily reinstalled without spline interfer­
ence during final assembly).
11. If side bearings were removed, lubricate outer
bearing surfaces and press on bearings as described
in (standard) Assemble Differential Case.
12. After making sure that matching surfaces are
clean and free of burrs, position ring gear on case
so holes are in line.
13. Lubricate attaching bolts with clean engine oil
and install.
14. Pull ring gear onto case by alternately tighten­
ing bolts around case. When all bolts are snug,
tighten bolts evenly and alternately across diameter
to 60 lb. ft. torque.
CA UTION: Do not use hammer to force ring gear
on case.
15. Install unit into axle carrier following instruc­
tions given for Standard Differential.
TROUBLE DIAGNOSIS
OIL LEAKS
It is difficult to determine the source of some oil
leaks. Even after the point of leakage has been
determined, it is hard to tell whether the oil is
leaking past the lip of the seal or past the O.D. of
the seal. Therefore, it is a good idea to make sure
the leak is stopped by using a nonhardening sealing
compound around the O.D. of the new seal.
SPECIFICATIONS
REAR AXLE
Type Semi- Floating
Type of D r i v e . . . . . . . . . . Modified Hotchkiss
Drive - Final Hypoid Gear
Lubricant Capacity . . Pontiac-72 oz. or 4 1/2 pints
Tempest & Firebird-48 oz. or 3 pints
Lubricant Multi-purpose Hypoid
Gear Lubricant
Lubricant L e v e l . . . . Bottom of Filler Plug Hole
RING AND PINION GEAR
Backlash 005" - .009"
Ring gear run-out maximum . 002"
"Ratios See Fig. 4A-4A for Pontiac.
See Fig. 4A-4B for Tempest.
See Fig. 4A-4C for Firebird.
Pinion Bearing Preload (with Ring Gear)
New Bearings (New Seal) 25 lb. in.
Old Bearings (New Seal) . . . . . . . 17 lb. in.
Side Bearing Preload. . . . . . Slip Fit Plus .008"
TORQUE Lb. Ft.
Differential Cover to Carrier Bolts 25
Differential Bearing Caps to Carrier Bolts . . 70
Differential Ring Gear to Case Bolts-Pontiac . 90
Differential Ring Gear to Case Bolts-Tempest
or Firebird 60
Differential Pinion Shaft Lock Screw 15
Rear U-Joint Companion Flange Nut
with Lock Plates 12
Rear U-Joint Companion Flange Nut
with Lockwashers 17
Rear Axle Upper Control Arm Assy to
Axle Housing Bolt-Pontiac or Tempest . . . 110
Rear Axle Upper Control Arm Assy to
Axle Housing Nut-Pontiac or Tempest . . . 80
Rear Axle Lower Control Arm Assy to
Axle Housing Bolt-Pontiac or Tempest . . . 110
Rear Axle Lower Control Arm Assy to
Axle Housing Nut-Pontiac or Tempest . . . 80
Rear Axle Bumper Spacer to Axle Housing
Bracket Bolt and Nut (Station Wagon) -
Tempest 50
Rear Spring Lower Clamp to Axle Housing
Seat Bolt & Nut-Tempest . . . 35
Rear Axle Upper Control Arm Assy to
Frame Bolt-Pontiac or Tempest 110
Rear Axle Upper Control Arm Assy to
Frame Nut-Pontiac or Tempest . . . . . . . 80
Rear Axle Lower Control Arm Assy to
Frame Bolt-Pontiac or Tempest 110
Rear Axle Lower Control Arm Assy to
Frame Nut-Pontiac or Tempest 80
Rear Shock Absorber to Axle Housing
Bracket Nut 65
Shock Absorber to Frame Bolt-Pontiac
or Tempest 20
Rear Wheel and Drum to Axle Shaft Nut-
Pontiac 80
Rear Wheel and Drum to Axle Shaft Nut-
Tempest or Firebird. . 65
Rear Brake Assy to Axle Housing Bolt
and Nut . . . . 35
Pinion Nose Bumper- Pontiac or Tempest . . . 8
Differential Case Bolts (Safe-T-Track)-
Tempest or Firebird. . . . . . . . . . . . . . 30
Leaf Spring Front Eye to Frame Bracket
Nuts- Firebird 100
Leaf Spring Rear Eye to Frame Bracket
Nuts- Firebird 50
Shock Absorber to Frame Bolt- Firebird . . . . 8