Pre-Disassembly Inspection

1. Using a dial indicator, measure the runout of the drive pinion shaft at a position 10 mm (0.39 inch) from the end of the shaft. The maximum runout is 0.08 mm (0.0031 inch). If the runout is greater than the maximum, replace the drive pinion and ring gear.
2. Remove the differential carrier cover after doing the following.
a. Remove the eight bolts from the carrier cover.
b. Using a brass bar and hammer, separate the cover and carrier.





3. Using a dial indicator, measure the ring gear runout. The maximum runout is 0.05 mm (0.0020 inch). If the runout is greater than the maximum, replace the drive pinion, ring gear and differential case.





4. Using a dial indicator, measure the backlash of the ring gear at three points at least and check that the average value is within the specification. The backlash should be 0.08 - 0.13 mm (0.0031 - 0.0051 inch).

NOTE: The difference between the maximum and minimum measured values must be less than 0.05 mm (0.0020 inch). If the backlash is not within the specification, adjust the backlash.





5. Using the 09229 - 55010 SST and a torque wrench, measure the drive pinion preload using the backlash of the drive pinion and ring gear. The preload (at starting) should be 0.5 - 0.8 Nm (4.3 - 6.9 inch lbs.)

NOTE: With vehicles which have run less than 8,000 km (5,000 miles), the preload may be large. The maximum preload (at starting) is 1.8 Nm (16.0 inch lbs.).

6. Using the 09229 - 55010 SST and a torque wrench, measure the total preload with the teeth of the drive pinion and ring gear in contact. The total (at starting), drive pinion preload plus 0.5 - 0.8 Nm (4.3 -6.9 inch lbs. If necessary, disassemble and inspect the differential.





7. Using a dial indicator, measure the pinion gear backlash with holding one side gear toward the case. The backlash should be 0.05 - 0.20 mm (0.0020 - 0.0079 inch). If the backlash is not within the specification, install the correct thrust washer.
8. Check the tooth contact pattern.