Tahoe 4WD V8-393 6.5L DSL Turbo VIN S (1995)
b. Install dial indicator on carrier with indicator button contacting back surface of ring gear.
c. Rotate differential case and note runout. If runout exceeds 0.002 inch, remove differential case and the ring gear from case.
d. Reinstall case and check runout at case flange. If runout exceeds 0.002 inch, the bearing or differential case is defective and corrections should
be made before proceeding.
e. Position two screwdrivers between bearing cup and ring gear on opposite side of ring gear. Apply force to screwdrivers to move differential
case as far as possible toward dial indicator. Rock the ring gear to seat bearings and, with force still applied, set dial indicator to "0".
f.
Reposition screwdrivers between bearing cup and carrier on ring gear side. Apply force to screwdrivers to move differential case as far as
possible toward center of carrier and note indicator readings.
g. Remove differential case from carrier.
10 1/2 and 11 Inch Ring Gear
1.
Remove differential side bearings using a suitable puller or press.
2.
Remove ring gear attaching bolts and the ring gear.
3.
Scribe an alignment mark on both case halves, then remove bolts holding case halves together.
4.
Tap top half of case loose from bottom, then remove top half and all internal components.
5.
Position new washers on side gears, using a small amount of lubricant on side gear hubs.
6.
Install pinion gears and new washers onto cross shaft.
7.
Assemble top half of case to bottom half, using alignment marks made during disassembly. Tighten bolts alternately and evenly.
8.
Install ring gear and
torque bolts alternately in stages to 110 ft. lbs on 10-1/2 inch axles, 220 ft. lbs. on 11 inch.
9.
Position side bearings onto case and seat bearings using a suitable driver. When installing second bearing, support case with suitable pilot to
prevent damaging case of opposite bearing.
10.
Determine side bearing shim requirements as follows:
a.
Place bearing cups over side bearings and install differential case into carrier, with pinion removed from carrier.
b.
Position original shim in ring gear side, then install bearing caps and tighten just enough to retain in place.
c.
Install a dial indicator on carrier with indicator button contacting back surface of ring gear.
d.
Position two screwdrivers between bearing shim and carrier on ring gear side of case. Apply force to screwdrivers to move differential case as
far as possible away from dial indicator. With force still applied, set dial indicator to 0.
e.
Reposition screwdrivers on opposite side of differential case and force differential case back toward dial indicator. Repeat sequence several
times until same reading is obtained.
f.
Add thickness of shim to dial indicator reading and record the result.
Disassembly
1.
Drain lubricant from axle housing and remove axle shaft retaining nuts and lockwashers.
2.
Rap each axle shaft sharply in center of flange, remove tapered dowels, then withdraw axle shafts.
Do not pry axle shaft from hub. Rapping
flange sharply should release tapered dowels locating flange and allow axle to be removed.
3.
Disconnect propeller shaft from companion flange and secure shaft aside.
4.
Remove all nuts securing carrier to housing except top two, loosen top two nuts and break carrier free from housing by tapping with soft faced
hammer.
5.
Support carrier with suitable jack, remove top two retaining nuts and withdraw carrier assembly from housing.
Small pry bar may be used to aid
carrier removal, but end of bar must be suitably rounded to prevent damage to mounting flange.
6.
Mount carrier assembly in suitable holding fixture and check ring gear and pinion backlash to aid assembly.
If original ring gear and pinion are
to be reused, backlash should be set to clearance measured in step 6 to maintain tooth contact pattern.
7.
Loosen jam nut and back-off ring gear thrust adjusting screw.
8.
Center punch one carrier leg, bearing cap and side bearing race to identify component location for assembly.
Keep all components in order
during disassembly. Components that are to be reused must be installed in original position.
