Front Differential Carrier Assembly Disassembly


  1. INSPECT BACKLASH OF DIFFERENTIAL RING GEAR AND DIFFERENTIAL DRIVE PINION

  2. INSPECT FRONT DRIVE PINION COMPANION FLANGE SUB-ASSEMBLY

  3. INSPECT DRIVE PINION PRELOAD

  4. INSPECT TOTAL PRELOAD

  5. REMOVE FRONT DIFFERENTIAL TUBE ASSEMBLY

  6. REMOVE DIFFERENTIAL SIDE GEAR SHAFT OIL SEAL

  7. REMOVE DIFFERENTIAL SIDE GEAR SHAFT SUB-ASSEMBLY

  8. REMOVE FRONT DIFFERENTIAL SIDE BEARING RETAINER DEFLECTOR

  9. REMOVE FRONT DRIVE PINION COMPANION FLANGE NUT

  10. REMOVE FRONT DRIVE PINION COMPANION FLANGE SUB-ASSEMBLY

  11. REMOVE FRONT DIFFERENTIAL DUST DEFLECTOR

  12. REMOVE FRONT DIFFERENTIAL CARRIER OIL SEAL

  13. REMOVE FRONT DIFFERENTIAL DRIVE PINION OIL SLINGER

  14. REMOVE FRONT DRIVE PINION REAR TAPERED ROLLER BEARING

  15. REMOVE DIFFERENTIAL SIDE BEARING RETAINER

  16. REMOVE DIFFERENTIAL CASE ASSEMBLY

  17. REMOVE DIFFERENTIAL DRIVE PINION

  18. REMOVE FRONT DRIVE PINION FRONT TAPERED ROLLER BEARING

  19. REMOVE FRONT DRIVE PINION FRONT TAPERED ROLLER BEARING

  20. REMOVE FRONT DRIVE PINION REAR TAPERED ROLLER BEARING

  21. REMOVE FRONT DIFFERENTIAL OIL STORAGE RING

  22. REMOVE FRONT DIFFERENTIAL CASE BEARING

  23. REMOVE DIFFERENTIAL RING GEAR

  24. REMOVE FRONT DIFFERENTIAL CASE BEARING

  25. DISASSEMBLE DIFFERENTIAL CASE

  26. INSPECT DIFFERENTIAL GEAR KIT

  27. INSPECT FRONT DIFFERENTIAL CASE

  28. REMOVE DIFFERENTIAL SIDE GEAR SHAFT OIL SEAL

  29. REMOVE DIFFERENTIAL SIDE GEAR SHAFT SUB-ASSEMBLY RH

  30. REMOVE FRONT DIFFERENTIAL SIDE GEAR SHAFT RH BEARING

Front Differential Carrier Assembly -- Disassembly



1. INSPECT BACKLASH OF DIFFERENTIAL RING GEAR AND DIFFERENTIAL DRIVE PINION


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Differential.Front Differential Carrier Assembly.Front Differential Carrier Assembly  Disassembly
  1. Using SST and a dial indicator, measure the ring gear backlash.

    SST
    09564-32011
    Standard backlash:
    0.11 to 0.21 mm (0.0043 to 0.0083 in.)
    1. If the backlash is not as specified, adjust the side bearing preload or repair as necessary.
      HINT:
      Perform the measurements at 3 or more positions around the side bearing preload.


2. INSPECT FRONT DRIVE PINION COMPANION FLANGE SUB-ASSEMBLY


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Differential.Front Differential Carrier Assembly.Front Differential Carrier Assembly  Disassembly
  1. Using a dial indicator, measure the runout of the companion flange vertically and laterally.

    Maximum runout:
    Runout
    Specified Condition
    Vertical runout
    0.10 mm (0.0039 in.)
    Lateral runout
    0.10 mm (0.0039 in.)
    1. If the runout is greater than the maximum, replace the companion flange.


3. INSPECT DRIVE PINION PRELOAD


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Differential.Front Differential Carrier Assembly.Front Differential Carrier Assembly  Disassembly
  1. Using a torque wrench, measure the preload of the backlash between the drive pinion and ring gear.

    Standard preload (at start of torque):
    0.49 to 0.78 N*m (5 to 8 kgf*cm, 4.3 to 6.9 in.*lbf)


4. INSPECT TOTAL PRELOAD


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Differential.Front Differential Carrier Assembly.Front Differential Carrier Assembly  Disassembly
  1. Using a torque wrench, measure the preload with the teeth of the drive pinion and ring gear in contact.

    Standard total preload (at start of torque):
    0.22 to 0.85 N*m (2 to 9 kgf*cm, 1.9 to 7.7 in.*lbf) + drive pinion preload
    1. If necessary, disassemble and inspect the differential.


5. REMOVE FRONT DIFFERENTIAL TUBE ASSEMBLY


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Differential.Front Differential Carrier Assembly.Front Differential Carrier Assembly  Disassembly
  1. Remove the 4 bolts.

  1. Using a plastic-faced hammer, tap out the differential tube.



6. REMOVE DIFFERENTIAL SIDE GEAR SHAFT OIL SEAL


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Differential.Front Differential Carrier Assembly.Front Differential Carrier Assembly  Disassembly
  1. Using SST, tap out the oil seal.

    SST
    09308-00010


7. REMOVE DIFFERENTIAL SIDE GEAR SHAFT SUB-ASSEMBLY


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Differential.Front Differential Carrier Assembly.Front Differential Carrier Assembly  Disassembly
  1. Using SST, remove the shaft.

    SST
    09350-20015(09369-20040)
    09950-40011(09951-04010,09952-04010,09953-04020,09954-04010,09955-04011,09957-04010,09958-04011)
  1. Remove the snap ring from the shaft.



8. REMOVE FRONT DIFFERENTIAL SIDE BEARING RETAINER DEFLECTOR


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Differential.Front Differential Carrier Assembly.Front Differential Carrier Assembly  Disassembly
  1. Using a screwdriver, pry out the bearing retainer deflector.

    HINT:
    Tape the screwdriver tip before use.


9. REMOVE FRONT DRIVE PINION COMPANION FLANGE NUT


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Differential.Front Differential Carrier Assembly.Front Differential Carrier Assembly  Disassembly
  1. Using SST and a hammer, loosen the staked part of the nut.

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


    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Differential.Front Differential Carrier Assembly.Front Differential Carrier Assembly  Disassembly
  1. Using SST to hold the companion flange in place, remove the nut.

    SST
    09330-00021


10. REMOVE FRONT DRIVE PINION COMPANION FLANGE SUB-ASSEMBLY


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Differential.Front Differential Carrier Assembly.Front Differential Carrier Assembly  Disassembly
  1. Using SST, remove the companion flange.

    SST
    09950-30012(09951-03010,09953-03010,09954-03010,09955-03030,09956-03020)
    NOTICE:
    Before using SST (center bolt), apply hypoid gear oil to its threads and tip.


11. REMOVE FRONT DIFFERENTIAL DUST DEFLECTOR


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Differential.Front Differential Carrier Assembly.Front Differential Carrier Assembly  Disassembly
  1. Using SST and a press, press out the dust deflector.

    SST
    09950-00020
    09950-60010(09951-00510)
    09950-70010(09951-07150)
    NOTICE:
    Do not drop the companion flange.


12. REMOVE FRONT DIFFERENTIAL CARRIER OIL SEAL


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Differential.Front Differential Carrier Assembly.Front Differential Carrier Assembly  Disassembly
  1. Using SST, remove the oil seal from the differential carrier.

    SST
    09308-10010


13. REMOVE FRONT DIFFERENTIAL DRIVE PINION OIL SLINGER
  1. Remove the oil slinger from the drive pinion.



14. REMOVE FRONT DRIVE PINION REAR TAPERED ROLLER BEARING


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Differential.Front Differential Carrier Assembly.Front Differential Carrier Assembly  Disassembly
  1. Using SST, remove the roller bearing (inner) from the drive pinion.

    SST
    09556-22010
  1. Remove the bearing spacer.



15. REMOVE DIFFERENTIAL SIDE BEARING RETAINER
  1. Remove the 10 bolts and tap out the retainer with a plastic-faced hammer.



16. REMOVE DIFFERENTIAL CASE ASSEMBLY


17. REMOVE DIFFERENTIAL DRIVE PINION


18. REMOVE FRONT DRIVE PINION FRONT TAPERED ROLLER BEARING


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Differential.Front Differential Carrier Assembly.Front Differential Carrier Assembly  Disassembly
  1. Using SST and a press, press out the roller bearing (inner) 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.


19. REMOVE FRONT DRIVE PINION FRONT TAPERED ROLLER BEARING


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Differential.Front Differential Carrier Assembly.Front Differential Carrier Assembly  Disassembly
  1. Using a brass bar and hammer, tap out the roller bearing (outer).



20. REMOVE FRONT DRIVE PINION REAR TAPERED ROLLER BEARING


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Differential.Front Differential Carrier Assembly.Front Differential Carrier Assembly  Disassembly
  1. Using SST, remove the roller bearing (outer).

    SST
    09502-12010
    09612-65014(09612-01020,09612-01050)


21. REMOVE FRONT DIFFERENTIAL OIL STORAGE RING
  1. Using a brass bar and hammer, tap out the oil storage ring.



22. REMOVE FRONT DIFFERENTIAL CASE BEARING


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Differential.Front Differential Carrier Assembly.Front Differential Carrier Assembly  Disassembly
HINT:
  1. Measure the thickness of the case washer.
  1. Tag the bearing outer races to show the location for reassembly.
  1. Using SST and a press, press out the case bearing (outer race) and case washer from the bearing retainer.

    SST
    09950-60020(09951-00680)
    09950-70010(09951-07150)
    1. If the bearing is damaged during removal, replace it.


    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Differential.Front Differential Carrier Assembly.Front Differential Carrier Assembly  Disassembly
  1. Using SST and a press, press out the case bearing (outer race) and case washer from the differential carrier.

    SST
    09950-60020(09951-00680)
    09950-70010(09951-07150)
    1. If the bearing is damaged during removal, replace it.


23. REMOVE DIFFERENTIAL RING GEAR


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Differential.Front Differential Carrier Assembly.Front Differential Carrier Assembly  Disassembly
  1. Place matchmarks on the ring gear and differential case.

  1. Remove the 10 ring gear set bolts.



    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Differential.Front Differential Carrier Assembly.Front Differential Carrier Assembly  Disassembly
  1. Using a plastic-faced hammer, tap on the ring gear to separate it from the differential case.



24. REMOVE FRONT DIFFERENTIAL CASE BEARING


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Differential.Front Differential Carrier Assembly.Front Differential Carrier Assembly  Disassembly
HINT:
The differential case and case bearings should only be removed when replacement is necessary.
  1. Using SST, remove the 2 case bearings (inner) from the differential case.

    SST
    09950-60010(09951-00480)
    09950-40011(09951-04020,09952-04010,09953-04030,09954-04010,09955-04061,09953-04020,09958-04011)
    HINT:
    Fix the claws of SST to the notch in the differential case assembly.


25. DISASSEMBLE DIFFERENTIAL CASE


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Differential.Front Differential Carrier Assembly.Front Differential Carrier Assembly  Disassembly
  1. Using a chisel and hammer, unstake the differential case.



    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Differential.Front Differential Carrier Assembly.Front Differential Carrier Assembly  Disassembly
  1. Using a pin punch and hammer, tap out the straight pin.



    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Differential.Front Differential Carrier Assembly.Front Differential Carrier Assembly  Disassembly
    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Differential.Front Differential Carrier Assembly.Front Differential Carrier Assembly  Disassembly
  1. Remove the following parts from the differential case.

    1. (1) Differential pinion gear (2 pieces)
    2. (2) Differential pinion gear thrust washer (2 pieces)
    3. (3) Differential pinion shaft
    4. (4) Differential side gear (2 pieces)
    5. (5) Differential side gear thrust washer (2 pieces)


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

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


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

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


28. REMOVE DIFFERENTIAL SIDE GEAR SHAFT OIL SEAL


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Differential.Front Differential Carrier Assembly.Front Differential Carrier Assembly  Disassembly
  1. Using SST, tap out the oil seal from the differential tube.

    SST
    09308-00010


29. REMOVE DIFFERENTIAL SIDE GEAR SHAFT SUB-ASSEMBLY RH


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Differential.Front Differential Carrier Assembly.Front Differential Carrier Assembly  Disassembly
  1. Using a snap ring expander, remove the snap ring.

  1. Remove the shaft from the differential tube.



30. REMOVE FRONT DIFFERENTIAL SIDE GEAR SHAFT RH BEARING


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Differential.Front Differential Carrier Assembly.Front Differential Carrier Assembly  Disassembly
  1. Using a snap ring expander, remove the snap ring.

  1. Using SST, a brass bar and press, press out the shaft RH bearing.

    SST
    09950-00020
    NOTICE:
    1. Do not damage the bearing.
    1. Do not drop the shaft.