M/T Differential

Component Location Index

Backlash Inspection





1. Place the differential assembly on V-blocks (A), and install both axles.
2. Measure the backlash of both pinion gears (B) with a dial indicator (C). If the backlash is not within the standard, replace the differential carrier.
Standard (New): 0.05 - 0.15 mm (0.002 - 0.006 inch)

Final Driven Gear/Carrier. Replacement





1. Remove the bolts (left-hand threads) in a crisscross pattern in several steps, then remove the final driven gear (A) from the differential carrier(B).
2. Install the final driven gear with the chamfer on the inside diameter facing the carrier. Tighten the bolts in a crisscross pattern in several steps.

Carrier Bearings Replacement

Special Tool Required
Driver, 40 mm I.D. 07746-0030100

1. Check the carrier bearings for wear and rough rotation. If they rotate smoothly and their rollers show no signs of wear, the bearings are OK.





2. Remove the carrier bearing (A) with a commercially-available bearing puller (B).





3. Install the new bearings (A) with the special tool and a press. Press each bearing on until it bottoms. There should be no clearance between the bearings and the carrier.

NOTE: Turn the seal (B) part of the bearing to the outside of differential, and install it.

Oil Seal Replacement

Special Tools Required
- Driver 07749-0010000
- Oil seal driver attachment 07NAD-P200100

1. Remove the differential assembly.





2. Remove the oil seal (A) from the transmission housing (B).





3. Remove the oil seal (A) from the clutch housing (B).





4. Install the new oil seal in the transmission housing with the special tools.





5. Install the new oil seal in the clutch housing with the special tools.

Differential Thrust Clearance Adjustment

Special Tool Required
Driver, 40 mm I.D. 07746-0030100





1. Install the 80 mm shim that's the same size as the one you removed.





2. Install the differential assembly into the clutch housing.
3. Install the transmission housing onto the clutch housing, then tighten the 8 mm flange bolts in a crisscross pattern in several steps.
8 x 1.25 mm 27 Nm (2.8 kgf-m, 20 ft. lbs.)





4. Use the special tool to bottom the differential assembly in the clutch housing.





5. Measure clearance between 80 mm shim and bearing outer race in transmission housing.
6. If the clearance is more than the standard, select a new shim from the following table. If the clearance measured in step 5 is within the standard, go to step 9.





80 mm Shim

7. Remove the bolts and transmission housing.
8. Replace the thrust shim selected in step 6, then recheck the clearance.
9. Reinstall the transmission.