DIFFERENTIAL
REMOVAL
1. Remove differential housing cover (1).
2. Push right axle shaft (1) out of side gear (3) with a screw driver (2) and remove shaft.
3. Mark differential bearing caps for installation reference.
4. Loosen bearing cap bolts.
5. Position Spreader W-129-B (3) with Adapters 6987B onto differential locating holes and install the safety hold-down clamps (2). Tighten spreader turnbuckle (4) finger-tight.
6. Install a Pilot Stud C-3288-B (1) at the left side of the differential housing. Attach Dial Indicator C-3339A (2) to pilot stud. Load indicator plunger against the opposite side of the housing and zero the indicator.
7. Spread differential case while measuring the distance with the dial indicator.
CAUTION: Never spread the differential housing over 0.34 mm (0.013 in). Failure to heed caution may result in damage.
8. Remove dial indicator.
9. Hold differential case (2) and remove bearing caps.
10. Remove differential from the housing (1).
11. Tag differential bearing (3) cups and shims to indicate location.
12. Remove spreader from housing.
DISASSEMBLY
1. Remove ring gear.
2. Remove roll-pin holding mate shaft in housing.
3. Remove pinion gear mate shaft.
4. Rotate differential side gears (2) and remove pinion gears (3) and thrust washers (1).
5. Remove differential side gears and thrust washers.
ASSEMBLY
1. Install differential side gears (2) and thrust washers.
2. Install pinion mate gears (3) and thrust washers (1).
3. Install pinion gear mate shaft.
4. Align hole in the pinion gear mate shaft (2) with the hole in the differential case.
5. Install the roll-pin (3) in the differential case with a hammer and punch (1). Peen the edge of the roll-pin hole in the differential case in two places 180° apart.
6. Lubricate all differential components with gear lubricant.
7. Install ring gear.
INSTALLATION
NOTE: If differential bearings or differential case are replaced, Refer to adjustments fore Differential Bearing Preload and Gear Backlash procedures.
1. Position Spreader W-129-B with Adapters 6987B on differential location holes and install safety hold-down clamps. Tighten spreader turnbuckle finger-tight.
2. Install Pilot Stud C-3288-B to the left side of the differential housing. Attach Dial Indicator C-3339A to pilot stud. Load indicator plunger against the opposite side of the housing and zero the indicator.
3. Spread housing while measuring the distance with the dial indicator.
CAUTION: Never spread the differential housing over 0.34 mm (0.013 in). Failure to follow these instructions will damage the housing.
4. Remove dial indicator.
5. Install differential case in the housing. Tap differential case to seat bearings cups and preload shims in housing.
6. Install bearing caps and loosely install bolts.
7. Loosen turnbuckle (4) remove safety clamp (2) and remove spreader (3).
8. Tighten bearing cap bolts in a criss-cross pattern to 54-68 N·m (39-50 ft. lbs.).
9. Install right axle shaft.
10. Install differential housing cover.