Total Differential Case End Play

Assembly

1. Attach the differential ring gear to the differential case using new bolts. Tighten bolts alternately and evenly to 95-122 Nm (70-90 lb-ft) for Model 44 or 129-142 Nm (95-105 lb-ft) for Model 50.

2. Clean the trunnions on the differential and install Dummy Differential Bearings D81T-4222-BR or equivalent for Model 44 axles, or D81T-4222-C or equivalent for Model 50 axles onto the differential case. Remove all burrs and nicks from hubs so master bearings rotate freely.

   
   
   
   
   

3. NOTE: Dial indicator should have a minimum travel capability of 5.08mm (0.200 inch).

   Place the differential case into carrier (without pinion). The differential case should move freely in the carrier. Mount Dial Indicator/Magnetic Base D78P-4201-B or Dial Indicator with Bracketry TOOL-4201-C or equivalents against the differential case flange as shown. Locate the tip of the indicator on the flat surface of one ring gear bolt.

4. Force the differential case toward the dial indicator as far as possible and zero the dial indicator with force still applied.

   
   
   
   
   

5. NOTE: The reading obtained in this step indicates the amount of shims needed behind the differential side bearings to take up total clearance between the differential bearing and differential case. This reading will be used under Gear Tooth Contact Pattern Check in this section.

   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.

6. Remove the differential case from the carrier. Do not remove the dummy differential bearings at this time.