Disassembly Note

NOTE:

If damage is detected during the checking procedure, a new differential should be installed.

Inspect the differential:
1. Differential Housing
2. Differential Bearing Shim
3. Differential Housing Bearing
4. Pinion Shaft Roll Pin
5. Pinion Shaft
6. Pinion Thrust Washer
7. Pinion Gear
8. Side Gear Thrust Washer
9. Differential Side Gear
Fig 1: Exploded View Of Differential
Courtesy of MAZDA MOTORS CORP.
CAUTION:
- Do not disassemble the planet carrier.
NOTE:
- If the measurement exceeds specification, install a new complete final drive carrier. If the measurement is within specification, continue with the diagnostic procedure.
Measure the final drive planet gear end play with a feeler gauge.

Fig 2: Measuring Final Drive Planet Gear End Play
Courtesy of MAZDA MOTORS CORP.
NOTE:
- Do not remove the final drive pinion shaft retaining ring.
Remove the differential pinion shaft.
1. Remove the pinion shaft roll pin.
2. Remove the differential pinion shaft.
Fig 3: Removing Differential Pinion Shaft
Courtesy of MAZDA MOTORS CORP.
Remove the pinion gears and thrust washers.
1. Turn the differential pinion gears 90 degrees and remove.
Fig 4: Removing Pinion Gears & Thrust Washers
Courtesy of MAZDA MOTORS CORP.
Remove the differential side gears and differential side gear thrust washers.

Fig 5: Removing Differential Side Gears & Differential Side Gear Thrust Washer
Courtesy of MAZDA MOTORS CORP.
Clean all parts thoroughly in clean solvent and blow dry with moisture-free regulated compressed air.
Inspect the differential parts for damage and wear.
1. Gear teeth.
2. Thrust washer surface.
3. Thrust bearing surface.
4. Pinion shaft.
Inspect the final drive planet and carrier.
1. Pinion gear teeth.
2. Thrust bearing surfaces.
3. Bushing surfaces.
Fig 6: Inspect Final Drive Planet & Carrier
Courtesy of MAZDA MOTORS CORP.