Inspection Before Disassembly of Carrier

The differential case (4204) assembly, drive pinion and ring gear should be inspected before they are removed from the rear axle housing (4010) . These inspections can find the cause of the condition and determine the resolution needed.

1. Wipe lubricant from internal working parts and visually inspect parts for wear and/or damage.

2. Rotate gears to see if there is any roughness which would indicate worn or damaged bearings or gears.

3. Check ring gear teeth for signs of scoring, abnormal wear or nicks/chips.

4. Set up Dial Indicator With Bracketry TOOL-4201-C or equivalent and check ring gear backlash and ring gear backface runout as outlined. Refer to Specifications.

5. Proper differential ring gear and pinion (4209) assembly must be checked using the Pinion Depth Gauge Set T79P-4020-A, which shows correct drive pinion bearing adjustment shim (4663) required to provide acceptable running condition.