Total Differential Case Endplay Assembly

1. Attach the ring gear to the differential case using new bolts. Tighten bolts alternately and evenly to 68-81 Nm (50-60 ft-lbs).

FIG. 42 Master Bearing Installation:

2. Clean the trunnions on the differential and install the Master Differential Bearings D81T-4222-B for Model 44 axles or D81T-4222-C or their equivalents for Model 50 axles (Fig. 42) onto the differential case. Remove all burrs and nicks from hubs so master bearings rotate freely.

FIG. 43 Checking Differential Case Endplay:

3. Place the differential case into carrier (without pinion). The differential case should move freely in the carrier. Mount dial indicator (D78P-4201-B or Tool-4201-C, or equivalent) against the differential case flange as shown in Fig. 43. Locate the tip of the indicator on the flat surface of one ring gear bolt. Force the differential case toward the dial indicator as far as possible and zero the dial indicator with force still applied.

NOTE: Dial indicator should have a minimum travel capability of 5.O8mm (0.200 inch).

4. Force the differential case away from the dial indicator as far as it will go. Repeat this procedure until the same reading is obtained. Record the dial indicator reading. This reading indicates the amount of shims needed behind the differential side bearings to take up total clearance between the differential bearing and case. This reading will be used under Pinion and Ring Gear Backlash.

5. Remove the differential case from the carrier. Do not remove the master differential bearings at this time.