Differential

SST:

Preparation

Preinspection




Backlash of side gear and pinion gear
Before disassembly, measure the backlash of the side gears and pinion gears. If not within specification, replace the differential assembly

Backlash
Standard : 0.025 - 0.1 mm {0.001 - 0.004 in}
Maximum : 0.5 mm {0.020 in)




Disassembly / Assembly

CAUTION: Do not remove inner race unless necessary.

1. Disassemble in the order shown in the figure, referring to Disassembly Note.
2. Inspect all parts and repair or replace as necessary.
3. Assemble in the reverse order of disassembly, referring to Assembly Procedure.
4. Measure the backlash after assembly, referring to Backlash of aide gear and pinion.

Disassembly note




Roll pin

NOTE:
- Use protective plates in the vise to prevent damage to the differential.
- Insert the punch into the roll pin hole from the ring gear side.

Place the gear case on a vise and knock the pin out with a suitable pin punch (dia. 2.0 mm {0.079 in}) and hammer.

Side bearing inner race




1. Remove the side bearing inner race (side opposite ring gear) from the gear case with the SST.




2. Remove the side bearing (ring gear side) with a combination of parts from the SST.

Assembly procedure




1. Set the speedometer drive gear onto the ring gear and case assembly.






CAUTION: Do not reuse the bearings if they were removed.

2. Install new side bearing.
1. Press the side bearing (side opposite ring gear) onto the ring gear and case assembly with the SST.
2. Press on the other side bearing (ring gear side) in the same manner.




3. Install the pinion gears and thrust washers into the case.
4. Install the pinion shaft.




5. Install the roll pin, and crimp it to prevent it from coming out of the gear case.




6. Install the thrust washers and side gears into the gear case at the same time, then turn them back on the pinion gear and align them with the pinion shaft hole.




7. Measure the backlash of the side gears and pinion gears as follows:
1. Install the left and right driveshafts in the differential assembly.
2. Support the driveshafts on V-blocks.
3. Measure the backlash of both pinion gears.

Backlash
Standard: 0.025 - 0.1 mm {0.001 - 0.004 in}
Maximum: 0.5 mm {0.020 in}

8. If the backlash is not within specification, replace the differential assembly.