Rear Differential Carrier Assembly Disassembly
Drivetrain. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25
SECURE REAR DIFFERENTIAL CARRIER ASSEMBLY
INSPECT REAR DRIVE PINION COMPANION FLANGE SUB-ASSEMBLY
INSPECT RUNOUT OF DIFFERENTIAL RING GEAR
INSPECT DIFFERENTIAL RING GEAR BACKLASH
INSPECT DIFFERENTIAL DRIVE PINION PRELOAD
INSPECT TOTAL PRELOAD
REMOVE REAR DRIVE PINION NUT
REMOVE REAR DRIVE PINION COMPANION FLANGE SUB-ASSEMBLY WITH DUST DEFLECTOR
REMOVE REAR DIFFERENTIAL CARRIER OIL SEAL
REMOVE REAR DIFFERENTIAL DRIVE PINION OIL SLINGER
REMOVE REAR DRIVE PINION FRONT TAPERED ROLLER BEARING
REMOVE REAR DIFFERENTIAL BEARING ADJUSTING NUT LOCK
REMOVE DIFFERENTIAL CASE ASSEMBLY
REMOVE DIFFERENTIAL DRIVE PINION
REMOVE REAR DRIVE PINION REAR TAPERED ROLLER BEARING
REMOVE REAR DIFFERENTIAL DRIVE PINION PLATE WASHER
REMOVE REAR DRIVE PINION FRONT TAPERED ROLLER BEARING
REMOVE REAR DRIVE PINION REAR TAPERED ROLLER BEARING
REMOVE DIFFERENTIAL RING GEAR
INSPECT DIFFERENTIAL CASE ASSEMBLY RUNOUT
REMOVE REAR DIFFERENTIAL CASE BEARING
DISASSEMBLE DIFFERENTIAL CASE (for 2 Pinion Gear Type)
DISASSEMBLE DIFFERENTIAL CASE (for LSD)
INSPECT REAR NO. 1 DIFFERENTIAL SIDE GEAR THRUST WASHER (for LSD)
INSPECT CLUTCH PLATE (for LSD)
INSPECT COMPRESSION SPRING (for LSD)
INSPECT DIFFERENTIAL GEAR KIT
INSPECT DIFFERENTIAL CASE
Rear Differential Carrier Assembly -- Disassembly |
1. SECURE REAR DIFFERENTIAL CARRIER ASSEMBLY |
Secure the differential carrier.
2. INSPECT REAR DRIVE PINION COMPANION FLANGE SUB-ASSEMBLY |
Using a dial indicator, measure the runout of the companion flange vertically and laterally.
Text in Illustration*a
| 30 mm (1.18 in.)
|
- Maximum Runout:
Runout
| Maximum
|
Vertical runout
| 0.10 mm (0.00394 in.)
|
Lateral runout
| 0.10 mm (0.00394 in.)
|
- If the runout is more than the maximum, replace the companion flange.
3. INSPECT RUNOUT OF DIFFERENTIAL RING GEAR |
Using a dial indicator, check the runout of the ring gear.
- Maximum runout:
- 0.07 mm (0.00276 in.)
- If the runout is more than the maximum, replace the ring gear with a new one.
4. INSPECT DIFFERENTIAL RING GEAR BACKLASH |
Using a dial indicator, check the backlash of the ring gear.
- Backlash:
- 0.13 to 0.18 mm (0.00512 to 0.00708 in.)
- If the backlash is not within the specification, adjust the side bearing preload or perform repairs as necessary.
- HINT:
- Perform the measurement at 3 or more positions around the circumference of the ring gear.
5. INSPECT DIFFERENTIAL DRIVE PINION PRELOAD |
Using a torque wrench, measure the preload.
- Standard Preload (Starting Torque):
Item
| Specified Condition
|
New bearing
| 1.1 to 1.6 N*m (12 to 16 kgf*cm, 10 to 14 in.*lbf)
|
Reused bearing
| 0.6 to 0.8 N*m (7 to 8 kgf*cm, 6 to 7 in.*lbf)
|
- If the result is not as specified, adjust the preload.
Using a torque wrench, measure the preload with the teeth of the drive pinion and ring gear in contact.
- Standard Total Preload:
Bearing
| Specified Condition
|
New
| 0.4 to 0.5 N*m (4 to 6 kgf*cm, 4 to 5 in.*lbf) + drive pinion preload
|
Reused
| 0.4 to 0.5 N*m (4 to 6 kgf*cm, 4 to 5 in.*lbf) + drive pinion preload
|
If the result is not as specified, adjust the preload.
7. REMOVE REAR DRIVE PINION NUT |
Using SST and a hammer, loosen the staked part of the nut.
- SST
- 09930-00010(09931-00010,09931-00020)
Using SST to hold the companion flange in place, remove the nut.
- SST
- 09330-00021(09330-00030)
Text in Illustration*a
| Turn
|
*b
| Hold
|
8. REMOVE REAR DRIVE PINION COMPANION FLANGE SUB-ASSEMBLY WITH DUST DEFLECTOR |
Using SST, remove the companion flange with dust deflector.
- SST
- 09950-30012(09951-03010,09953-03010,09954-03010,09955-03030,09956-03040)
- NOTICE:
- Before using SST (center bolt), apply hypoid gear oil to its threads and tip.
9. REMOVE REAR DIFFERENTIAL CARRIER OIL SEAL |
Using SST, remove the oil seal.
- SST
- 09308-10010
Text in Illustration*1
| Oil Seal
|
*2
| Oil Slinger
|
10. REMOVE REAR DIFFERENTIAL DRIVE PINION OIL SLINGER |
Remove the oil slinger from the drive pinion.
11. REMOVE REAR DRIVE PINION FRONT TAPERED ROLLER BEARING |
Using SST, remove the roller bearing (inner) from the drive pinion.
- SST
- 09556-22010
12. REMOVE REAR DIFFERENTIAL BEARING ADJUSTING NUT LOCK |
Remove the 2 bolts and 2 adjusting nut locks.
13. REMOVE DIFFERENTIAL CASE ASSEMBLY |
Place matchmarks on the bearing cap and differential carrier.
Text in Illustration*1
| Matchmark
|
Remove the 4 bolts and 2 differential bearing caps.
Remove the 2 adjusting nuts.
Remove the rear differential case assembly from the differential carrier.
- HINT:
- Tag the 2 rear differential case bearings (outer) so that they can be reinstalled in the correct locations.
14. REMOVE DIFFERENTIAL DRIVE PINION |
Remove the drive pinion and bearing spacer from the differential carrier.
15. REMOVE REAR DRIVE PINION REAR TAPERED ROLLER BEARING |
Using SST and a press, press out the roller bearing (inner) and drive pinion plate washer from the drive pinion.
- SST
- 09950-00020
- NOTICE:
- Do not drop the drive pinion.
- HINT:
- If the drive pinion or ring gear is damaged, replace them as a set.
16. REMOVE REAR DIFFERENTIAL DRIVE PINION PLATE WASHER |
17. REMOVE REAR DRIVE PINION FRONT TAPERED ROLLER BEARING |
Using SST, remove the roller bearing (outer) from the carrier.
- SST
- 09308-00010
Using a brass bar and hammer, tap out the oil storage ring from the carrier.
- HINT:
- If the bearing is damaged during removal, replace it.
18. REMOVE REAR DRIVE PINION REAR TAPERED ROLLER BEARING |
Using a brass bar and hammer, tap out the rear tapered roller bearing (outer) from the carrier.
- HINT:
- If the bearing is damaged during removal, replace it.
19. REMOVE DIFFERENTIAL RING GEAR |
Place matchmarks on the ring gear and differential case.
Text in Illustration*1
| Matchmark
|
Using a screwdriver and hammer, pry out the lock plates.
Remove the 10 ring gear set bolts and 5 lock plates.
Using a plastic-faced hammer, tap on the ring gear to separate it from the differential case.
20. INSPECT DIFFERENTIAL CASE ASSEMBLY RUNOUT |
If the ring gear runout is within the specified value (refer to the "Inspect Runout of Differential Ring Gear" procedure above), skip this step.Install the rear differential case bearings (outer) to the differential case.
Install the differential case to the differential carrier.
Install the 2 adjusting nuts.
Install the 2 bearing caps to the differential carrier with the 4 bolts.
- Torque:
- 85 N*m{870 kgf*cm, 63 ft.*lbf}
Using a dial indicator, measure the differential case runout.
- Maximum runout:
- 0.07 mm (0.00276 in.)
Remove the 4 bolts and 2 bearing caps.
Remove the 2 adjusting nuts.
Remove the differential case.
Remove the rear differential case bearings (outer).
21. REMOVE REAR DIFFERENTIAL CASE BEARING |
Using SST, remove the 2 bearings from the differential case.
- SST
- 09950-40011(09951-04020,09952-04010,09953-04030,09954-04010,09955-04061,09957-04010,09958-04011)
09950-60010(09951-00360)
- HINT:
- Do not remove the case bearings when not replacing the differential case.
22. DISASSEMBLE DIFFERENTIAL CASE (for 2 Pinion Gear Type) |
Using a chisel and hammer, unstake the differential case.
Using a pin punch and hammer, tap out the straight pin.
Remove the following parts from the differential case.
- (1) Side gear (2 pieces)
- (2) Side gear thrust washer (2 pieces)
- (3) Pinion shaft
- (4) Pinion gear (2 pieces)
- (5) Pinion gear thrust washer (2 pieces)
Using a chisel and hammer, unstake the differential case.
23. DISASSEMBLE DIFFERENTIAL CASE (for LSD) |
Place matchmarks on the LH and RH cases.
Text in Illustration*1
| Matchmark
|
Remove the 8 bolts.
- NOTICE:
- Diametrically loosen and remove the bolts in several passes.
Remove the following parts from the differential cases.
- (1) Side gear (2 pieces)
- (2) No. 1 Side gear thrust washer (6 pieces)
- (3) Clutch plate (6 pieces)
- (4) Side gear thrust washer (2 pieces)
- (5) Spring retainer RH
- (6) Spring retainer LH
- (7) Compression spring
- (8) Pinion gear (4 pieces)
- (9) Pinion gear thrust washer (4 pieces)
- (10) Spider
24. INSPECT REAR NO. 1 DIFFERENTIAL SIDE GEAR THRUST WASHER (for LSD) |
Using a micrometer, measure the thickness of the thrust washer. Also, check that there is no bare metal.
- Standard thickness:
- 1.77 to 1.86 mm (0.0697 to 0.0732 in.)
- If necessary, replace the thrust washers.
- HINT:
- If replacing the thrust washer, also replace the clutch plate that it contacts.
25. INSPECT CLUTCH PLATE (for LSD) |
Using a micrometer, measure the thickness of the clutch plate. Also, check that there is no abnormal wear.
- Standard thickness:
- 1.57 to 1.63 mm (0.0619 to 0.0641 in.)
- If necessary, replace the clutch plate.
26. INSPECT COMPRESSION SPRING (for LSD) |
Using a vernier caliper, measure the free length of the spring.
- Minimum free length:
- 27.02 mm (1.063 in.)
- If the length is less than the minimum, replace the spring.
27. INSPECT DIFFERENTIAL GEAR KIT |
Check that the differential pinion and differential gear are not damaged.
- If the differential pinion or differential side gear is damaged, replace the differential gear kit.
28. INSPECT DIFFERENTIAL CASE |
Check that the differential case is not damaged.
- If the differential case is damaged, replace it.