Rear Differential Carrier Assembly Disassembly

Drivetrain. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25
Axle And Differential. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25

  1. SECURE REAR DIFFERENTIAL CARRIER ASSEMBLY

  2. INSPECT REAR DRIVE PINION COMPANION FLANGE SUB-ASSEMBLY

  3. INSPECT RUNOUT OF DIFFERENTIAL RING GEAR

  4. INSPECT DIFFERENTIAL RING GEAR BACKLASH

  5. INSPECT DIFFERENTIAL DRIVE PINION PRELOAD

  6. INSPECT TOTAL PRELOAD

  7. REMOVE REAR DRIVE PINION NUT

  8. REMOVE REAR DRIVE PINION COMPANION FLANGE SUB-ASSEMBLY WITH DUST DEFLECTOR

  9. REMOVE REAR DIFFERENTIAL CARRIER OIL SEAL

  10. REMOVE REAR DIFFERENTIAL DRIVE PINION OIL SLINGER

  11. REMOVE REAR DRIVE PINION FRONT TAPERED ROLLER BEARING

  12. REMOVE REAR DIFFERENTIAL BEARING ADJUSTING NUT LOCK

  13. REMOVE DIFFERENTIAL CASE ASSEMBLY

  14. REMOVE DIFFERENTIAL DRIVE PINION

  15. REMOVE REAR DRIVE PINION REAR TAPERED ROLLER BEARING

  16. REMOVE REAR DIFFERENTIAL DRIVE PINION PLATE WASHER

  17. REMOVE REAR DRIVE PINION FRONT TAPERED ROLLER BEARING

  18. REMOVE REAR DRIVE PINION REAR TAPERED ROLLER BEARING

  19. REMOVE DIFFERENTIAL RING GEAR

  20. INSPECT DIFFERENTIAL CASE ASSEMBLY RUNOUT

  21. REMOVE REAR DIFFERENTIAL CASE BEARING

  22. DISASSEMBLE DIFFERENTIAL CASE (for 2 Pinion Gear Type)

  23. DISASSEMBLE DIFFERENTIAL CASE (for LSD)

  24. INSPECT REAR NO. 1 DIFFERENTIAL SIDE GEAR THRUST WASHER (for LSD)

  25. INSPECT CLUTCH PLATE (for LSD)

  26. INSPECT COMPRESSION SPRING (for LSD)

  27. INSPECT DIFFERENTIAL GEAR KIT

  28. INSPECT DIFFERENTIAL CASE

Rear Differential Carrier Assembly -- Disassembly



1. SECURE REAR DIFFERENTIAL CARRIER ASSEMBLY


    Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25
  1. Secure the differential carrier.



2. INSPECT REAR DRIVE PINION COMPANION FLANGE SUB-ASSEMBLY


    Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.Axle And Differential.Axle System.Rear Differential Carrier Assembly  Disassembly
  1. 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.)
    1. If the runout is more than the maximum, replace the companion flange.


3. INSPECT RUNOUT OF DIFFERENTIAL RING GEAR


    Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25
  1. Using a dial indicator, check the runout of the ring gear.

    Maximum runout:
    0.07 mm (0.00276 in.)
    1. If the runout is more than the maximum, replace the ring gear with a new one.


4. INSPECT DIFFERENTIAL RING GEAR BACKLASH


Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25
  1. Using a dial indicator, check the backlash of the ring gear.

    Backlash:
    0.13 to 0.18 mm (0.00512 to 0.00708 in.)
    1. 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


    Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25
  1. 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)
    1. If the result is not as specified, adjust the preload.


6. INSPECT TOTAL PRELOAD


    Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25
  1. 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


    Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.Axle And Differential.Axle System.Rear Differential Carrier Assembly  Disassembly
  1. Using SST and a hammer, loosen the staked part of the nut.

    SST
    09930-00010(09931-00010,09931-00020)


    Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.Axle And Differential.Axle System.Rear Differential Carrier Assembly  Disassembly
  1. 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


    Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25
  1. 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


    Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.Axle And Differential.Axle System.Rear Differential Carrier Assembly  Disassembly
  1. 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


    Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25
  1. Remove the oil slinger from the drive pinion.



11. REMOVE REAR DRIVE PINION FRONT TAPERED ROLLER BEARING


    Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.Axle And Differential.Axle System.Rear Differential Carrier Assembly  Disassembly
  1. Using SST, remove the roller bearing (inner) from the drive pinion.

    SST
    09556-22010


12. REMOVE REAR DIFFERENTIAL BEARING ADJUSTING NUT LOCK


    Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25
  1. Remove the 2 bolts and 2 adjusting nut locks.



13. REMOVE DIFFERENTIAL CASE ASSEMBLY


    Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.Axle And Differential.Axle System.Rear Differential Carrier Assembly  Disassembly
  1. Place matchmarks on the bearing cap and differential carrier.

    Text in Illustration
    *1
    Matchmark
  1. Remove the 4 bolts and 2 differential bearing caps.

  1. Remove the 2 adjusting nuts.



    Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25
  1. 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
  1. Remove the drive pinion and bearing spacer from the differential carrier.



15. REMOVE REAR DRIVE PINION REAR TAPERED ROLLER BEARING


    Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.Axle And Differential.Axle System.Rear Differential Carrier Assembly  Disassembly
  1. 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


    Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.Axle And Differential.Axle System.Rear Differential Carrier Assembly  Disassembly
  1. Using SST, remove the roller bearing (outer) from the carrier.

    SST
    09308-00010
  1. 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


    Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25
  1. 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


    Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.Axle And Differential.Axle System.Rear Differential Carrier Assembly  Disassembly
  1. Place matchmarks on the ring gear and differential case.

    Text in Illustration
    *1
    Matchmark
  1. Using a screwdriver and hammer, pry out the lock plates.

  1. Remove the 10 ring gear set bolts and 5 lock plates.



    Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25
  1. 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.
  1. Install the rear differential case bearings (outer) to the differential case.

  1. Install the differential case to the differential carrier.

  1. Install the 2 adjusting nuts.

  1. Install the 2 bearing caps to the differential carrier with the 4 bolts.

    Torque:
    85 N*m{870 kgf*cm, 63 ft.*lbf}


    Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25
  1. Using a dial indicator, measure the differential case runout.

    Maximum runout:
    0.07 mm (0.00276 in.)
  1. Remove the 4 bolts and 2 bearing caps.

  1. Remove the 2 adjusting nuts.

  1. Remove the differential case.

  1. Remove the rear differential case bearings (outer).



21. REMOVE REAR DIFFERENTIAL CASE BEARING


    Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.Axle And Differential.Axle System.Rear Differential Carrier Assembly  Disassembly
  1. 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)


    Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25
  1. Using a chisel and hammer, unstake the differential case.



    Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25
  1. Using a pin punch and hammer, tap out the straight pin.



    Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25
  1. Remove the following parts from the differential case.


    1. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.Axle And Differential.Axle System.Rear Differential Carrier Assembly  Disassembly
      (1) Side gear (2 pieces)
    2. (2) Side gear thrust washer (2 pieces)
    3. (3) Pinion shaft
    4. (4) Pinion gear (2 pieces)
    5. (5) Pinion gear thrust washer (2 pieces)
  1. Using a chisel and hammer, unstake the differential case.



23. DISASSEMBLE DIFFERENTIAL CASE (for LSD)


    Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.Axle And Differential.Axle System.Rear Differential Carrier Assembly  Disassembly
  1. Place matchmarks on the LH and RH cases.

    Text in Illustration
    *1
    Matchmark
  1. Remove the 8 bolts.

    NOTICE:
    Diametrically loosen and remove the bolts in several passes.


    Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.Axle And Differential.Axle System.Rear Differential Carrier Assembly  Disassembly
  1. Remove the following parts from the differential cases.

    1. (1) Side gear (2 pieces)
    2. (2) No. 1 Side gear thrust washer (6 pieces)
    3. (3) Clutch plate (6 pieces)
    4. (4) Side gear thrust washer (2 pieces)

    5. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.Axle And Differential.Axle System.Rear Differential Carrier Assembly  Disassembly
      (5) Spring retainer RH
    6. (6) Spring retainer LH
    7. (7) Compression spring
    8. (8) Pinion gear (4 pieces)
    9. (9) Pinion gear thrust washer (4 pieces)
    10. (10) Spider


24. INSPECT REAR NO. 1 DIFFERENTIAL SIDE GEAR THRUST WASHER (for LSD)


    Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25
  1. 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.)
    1. 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)


    Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25
  1. 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.)
    1. If necessary, replace the clutch plate.


26. INSPECT COMPRESSION SPRING (for LSD)


    Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25
  1. Using a vernier caliper, measure the free length of the spring.

    Minimum free length:
    27.02 mm (1.063 in.)
    1. If the length is less than the minimum, replace the spring.


27. INSPECT DIFFERENTIAL GEAR KIT
  1. Check that the differential pinion and differential gear are not damaged.

    1. If the differential pinion or differential side gear is damaged, replace the differential gear kit.


28. INSPECT DIFFERENTIAL CASE
  1. Check that the differential case is not damaged.

    1. If the differential case is damaged, replace it.