Rear Differential Carrier Assembly (W/ Differential Lock) Disassembly


  1. FIX REAR DIFFERENTIAL CARRIER ASSEMBLY

  2. INSPECT RUNOUT OF 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 DIFFERENTIAL LOCK SHIFT ACTUATOR

  8. REMOVE NO. 1 TRANSFER INDICATOR SWITCH

  9. REMOVE REAR DIFFERENTIAL LOCK SHIFT FORK SHAFT

  10. REMOVE REAR DRIVE PINION NUT

  11. REMOVE REAR DRIVE PINION COMPANION FLANGE SUB-ASSEMBLY

  12. REMOVE REAR DIFFERENTIAL DUST DEFLECTOR

  13. REMOVE REAR DIFFERENTIAL CARRIER OIL SEAL

  14. REMOVE REAR DIFFERENTIAL DRIVE PINION OIL SLINGER

  15. REMOVE REAR DRIVE PINION FRONT TAPERED ROLLER BEARING

  16. REMOVE REAR DIFFERENTIAL BEARING ADJUSTING NUT LOCK

  17. REMOVE DIFFERENTIAL CASE ASSEMBLY

  18. REMOVE DIFFERENTIAL DRIVE PINION

  19. REMOVE REAR DRIVE PINION REAR TAPERED ROLLER BEARING

  20. REMOVE REAR DIFFERENTIAL DRIVE PINION PLATE WASHER

  21. REMOVE REAR DRIVE PINION FRONT TAPERED ROLLER BEARING

  22. REMOVE REAR DRIVE PINION REAR TAPERED ROLLER BEARING

  23. REMOVE DIFFERENTIAL RING GEAR

  24. INSPECT DIFFERENTIAL CASE ASSEMBLY RUNOUT

  25. REMOVE REAR DIFFERENTIAL CASE BEARING

  26. DISASSEMBLE DIFFERENTIAL CASE

  27. INSPECT REAR DIFFERENTIAL LOCK SLEEVE

  28. INSPECT SHIFT FORK AND SLEEVE

  29. INSPECT DIFFERENTIAL PINION AND SIDE GEAR

  30. INSPECT DIFFERENTIAL CASE

Rear Differential Carrier Assembly (W/ Differential Lock) -- Disassembly



1. FIX REAR DIFFERENTIAL CARRIER ASSEMBLY


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Differential.Rear Differential Carrier Assembly (W/ Differential Lock).Rear Differential Carrier Assembly (W/ Differential Lock)  Disassembly


2. INSPECT RUNOUT OF REAR DRIVE PINION COMPANION FLANGE SUB-ASSEMBLY


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Differential.Rear Differential Carrier Assembly (W/ Differential Lock).Rear Differential Carrier Assembly (W/ Differential Lock)  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 RUNOUT OF DIFFERENTIAL RING GEAR


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50
  1. Using a dial indicator, measure the runout of the ring gear.

    Maximum runout:
    0.07 mm (0.0028 in.)
    1. If the runout is greater than the maximum, replace the ring gear with a new one.


4. INSPECT DIFFERENTIAL RING GEAR BACKLASH


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50
  1. Using a dial indicator, measure the backlash of the ring gear.

    Standard backlash:
    0.13 to 0.18 mm (0.0051 to 0.0071 in.)
    1. If the backlash is not within the specification, adjust the side bearing preload or repair as necessary.
      HINT:
      Perform the measurements at 3 or more positions around the side bearing preload.


5. INSPECT DIFFERENTIAL DRIVE PINION PRELOAD


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

    Standard preload (at start of torque):
    0.56 to 0.85 N*m (6 to 9 kgf*cm, 4.9 to 7.5 in.*lbf)
    1. If necessary, disassemble and inspect the differential.


6. INSPECT TOTAL PRELOAD


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

  1. Using a torque wrench, measure the total preload.

    Standard total preload:
    0.39 to 0.59 N*m (4 to 6 kgf*cm, 3.4 to 5.2 in.*lbf) + drive pinion preload
    1. If necessary, disassemble and inspect the differential.


7. REMOVE DIFFERENTIAL LOCK SHIFT ACTUATOR


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50
  1. Remove the 4 bolts and actuator from the differential carrier.

  1. Remove the O-ring.



8. REMOVE NO. 1 TRANSFER INDICATOR SWITCH


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Differential.Rear Differential Carrier Assembly (W/ Differential Lock).Rear Differential Carrier Assembly (W/ Differential Lock)  Disassembly
  1. Remove the switch and gasket.



9. REMOVE REAR DIFFERENTIAL LOCK SHIFT FORK SHAFT


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Differential.Rear Differential Carrier Assembly (W/ Differential Lock).Rear Differential Carrier Assembly (W/ Differential Lock)  Disassembly
  1. Using a 6 mm hexagon wrench, remove the 2 screw plugs.

  1. Remove the spring seat, spring and steel ball.



    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Differential.Rear Differential Carrier Assembly (W/ Differential Lock).Rear Differential Carrier Assembly (W/ Differential Lock)  Disassembly
  1. Using a 5 mm pin punch and hammer, tap out the slotted spring pin from the shift fork shaft.



    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50
  1. Remove the 2 bolts from the shaft retainer.

  1. Using a plastic-faced hammer, tap on the retainer to separate it from the differential case.

  1. Remove the shift fork shaft.



10. REMOVE REAR DRIVE PINION NUT


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Differential.Rear Differential Carrier Assembly (W/ Differential Lock).Rear Differential Carrier Assembly (W/ Differential Lock)  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.Rear Differential Carrier Assembly (W/ Differential Lock).Rear Differential Carrier Assembly (W/ Differential Lock)  Disassembly
  1. Using SST to hold the companion flange in place, remove the nut.

    SST
    09330-00021(09330-00030)


11. REMOVE REAR DRIVE PINION COMPANION FLANGE SUB-ASSEMBLY


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Differential.Rear Differential Carrier Assembly (W/ Differential Lock).Rear Differential Carrier Assembly (W/ Differential Lock)  Disassembly
  1. Using SST, remove the companion flange.

    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.


12. REMOVE REAR DIFFERENTIAL DUST DEFLECTOR


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Differential.Rear Differential Carrier Assembly (W/ Differential Lock).Rear Differential Carrier Assembly (W/ Differential Lock)  Disassembly
  1. Using SST and a press, press out the dust deflector.

    SST
    09950-60010(09951-00380)
    09950-70010(09951-07150)
    09950-00020
    NOTICE:
    Do not drop the companion flange.


13. REMOVE REAR DIFFERENTIAL CARRIER OIL SEAL


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Differential.Rear Differential Carrier Assembly (W/ Differential Lock).Rear Differential Carrier Assembly (W/ Differential Lock)  Disassembly
  1. Using SST, remove the oil seal from the differential carrier.

    SST
    09308-10010


14. REMOVE REAR DIFFERENTIAL DRIVE PINION OIL SLINGER


15. REMOVE REAR DRIVE PINION FRONT TAPERED ROLLER BEARING


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

    SST
    09556-22010


16. REMOVE REAR DIFFERENTIAL BEARING ADJUSTING NUT LOCK


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50
  1. Remove the 2 bolts and 2 adjusting locks.



17. REMOVE DIFFERENTIAL CASE ASSEMBLY


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Differential.Rear Differential Carrier Assembly (W/ Differential Lock).Rear Differential Carrier Assembly (W/ Differential Lock)  Disassembly
  1. Place matchmarks on the bearing cap and differential carrier.

  1. Remove the 4 bolts and 2 differential bearing caps.

  1. Remove the 2 adjusting nuts.



    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50
  1. Remove the rear differential case assembly from the differential carrier.

    HINT:
    Tag the 2 case bearing outer races to show the location for reassembly.


18. REMOVE DIFFERENTIAL DRIVE PINION
  1. Remove the drive pinion and bearing spacer from the differential carrier.



19. REMOVE REAR DRIVE PINION REAR TAPERED ROLLER BEARING


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Differential.Rear Differential Carrier Assembly (W/ Differential Lock).Rear Differential Carrier Assembly (W/ Differential Lock)  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.


20. REMOVE REAR DIFFERENTIAL DRIVE PINION PLATE WASHER


21. REMOVE REAR DRIVE PINION FRONT TAPERED ROLLER BEARING


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Differential.Rear Differential Carrier Assembly (W/ Differential Lock).Rear Differential Carrier Assembly (W/ Differential Lock)  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.


22. REMOVE REAR DRIVE PINION REAR TAPERED ROLLER BEARING


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50
  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.


23. REMOVE DIFFERENTIAL RING GEAR


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Differential.Rear Differential Carrier Assembly (W/ Differential Lock).Rear Differential Carrier Assembly (W/ Differential Lock)  Disassembly
  1. Place matchmarks on the ring gear and differential case.

  1. Using a screwdriver and hammer, pry out the lock plates.

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



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



24. INSPECT DIFFERENTIAL CASE ASSEMBLY RUNOUT


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Differential.Rear Differential Carrier Assembly (W/ Differential Lock).Rear Differential Carrier Assembly (W/ Differential Lock)  Disassembly
  1. Install the rear differential case bearing to the differential case.

  1. Install the differential case to the differential carrier.

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

    Torque:
    85 N*m{867 kgf*cm, 63 ft.*lbf}
  1. Using dial indicator, measure the differential case runout.

    Maximum runout:
    0.07 mm (0.0028 in.)
  1. Remove the differential case.

  1. Remove the rear differential case bearing.



25. REMOVE REAR DIFFERENTIAL CASE BEARING


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Differential.Rear Differential Carrier Assembly (W/ Differential Lock).Rear Differential Carrier Assembly (W/ Differential Lock)  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 bearing when not replacing the differential case.


26. DISASSEMBLE DIFFERENTIAL CASE


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Differential.Rear Differential Carrier Assembly (W/ Differential Lock).Rear Differential Carrier Assembly (W/ Differential Lock)  Disassembly
  1. Place matchmarks on the LH and RH cases.

  1. Remove the 8 bolts uniformly, a little at a time.



    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50
  1. Using a plastic-faced hammer, tap out the LH case from the RH case.



    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Differential.Rear Differential Carrier Assembly (W/ Differential Lock).Rear Differential Carrier Assembly (W/ Differential Lock)  Disassembly
  1. Remove the following parts from the differential cases.

    1. (1) Side gear (2 pieces)
    2. (2) Side gear thrust washer (2 pieces)
    3. (3) Spider
    4. (4) Pinion gear (4 pieces)
    5. (5) Pinion gear thrust washers (4 pieces)


27. INSPECT REAR DIFFERENTIAL LOCK SLEEVE


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50
  1. Install the sleeve to the differential case LH and check that it moves smoothly.

  1. Install the sleeve to the side gear and check that it moves smoothly.



28. INSPECT SHIFT FORK AND SLEEVE


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50
  1. Using a feeler gauge, measure the clearance between the shift fork and sleeve.

    Standard clearance (reference):
    0.15 to 0.35 mm (0.006 to 0.014 in.)


29. INSPECT DIFFERENTIAL PINION AND SIDE GEAR
  1. Check that the differential pinion and differential side gear are not worn.

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


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

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