Rear Differential Carrier Assembly Reassembly


  1. ASSEMBLE DIFFERENTIAL CASE

  2. INSTALL DIFFERENTIAL RING GEAR

  3. INSTALL REAR DIFFERENTIAL CASE BEARING

  4. INSPECT DIFFERENTIAL RING GEAR RUNOUT

  5. INSTALL REAR DRIVE PINION FRONT TAPERED ROLLER BEARING

  6. INSTALL REAR DRIVE PINION REAR TAPERED ROLLER BEARING

  7. INSTALL REAR DRIVE PINION REAR TAPERED ROLLER BEARING

  8. ADJUST DIFFERENTIAL DRIVE PINION PRELOAD

  9. INSTALL DIFFERENTIAL CASE ASSEMBLY

  10. INSTALL REAR DIFFERENTIAL BEARING ADJUSTING NUT

  11. INSPECT AND ADJUST DIFFERENTIAL RING GEAR AND DIFFERENTIAL DRIVE PINION BACKLASH

  12. INSPECT TOTAL PRELOAD

  13. INSPECT TOOTH CONTACT BETWEEN RING GEAR AND DRIVE PINION

  14. REMOVE REAR DRIVE PINION NUT

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

  16. REMOVE REAR DIFFERENTIAL DRIVE PINION OIL SLINGER

  17. REMOVE REAR DRIVE PINION FRONT TAPERED ROLLER BEARING

  18. INSTALL REAR DIFFERENTIAL DRIVE PINION BEARING SPACER

  19. INSTALL DIFFERENTIAL OIL STORAGE RING

  20. INSTALL REAR DRIVE PINION FRONT TAPERED ROLLER BEARING

  21. INSTALL REAR DIFFERENTIAL DRIVE PINION OIL SLINGER

  22. INSTALL REAR DIFFERENTIAL CARRIER OIL SEAL

  23. INSTALL REAR DRIVE PINION COMPANION FLANGE SUB-ASSEMBLY WITH DUST DEFLECTOR

  24. INSPECT TOTAL PRELOAD

  25. INSPECT DIFFERENTIAL RING GEAR BACKLASH

  26. INSPECT REAR DRIVE PINION COMPANION FLANGE SUB-ASSEMBLY

  27. STAKE DRIVE PINION NUT

  28. INSTALL REAR DIFFERENTIAL BEARING ADJUSTING NUT LOCK

Rear Differential Carrier Assembly -- Reassembly



1. ASSEMBLE DIFFERENTIAL CASE


    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50
  1. Install the side gear thrust washer to the side gear.

    HINT:
    Using the table below, select 2 thrust washers which will ensure that the backlash is within the specifications.
    Standard Washer Thickness:
    Thickness mm (in.)
    Thickness mm (in.)
    1.48 to 1.52 (0.0583 to 0.0598)
    1.73 to 1.77 (0.0682 to 0.0696)
    1.53 to 1.57 (0.0603 to 0.0618)
    1.78 to 1.82 (0.0701 to 0.0716)
    1.58 to 1.62 (0.0622 to 0.0637)
    1.83 to 1.87 (0.0721 to 0.0736)
    1.63 to 1.67 (0.0642 to 0.0657)
    1.88 to 1.92 (0.0741 to 0.0755)
    1.68 to 1.72 (0.0662 to 0.0677)
    -


    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50
  1. Install the 2 side gears (with thrust washers), 2 pinion gears, 2 pinion gear thrust washers and pinion shaft to the differential case.

    HINT:
    Align the holes of the differential case and pinion shaft.


    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50
  1. Measure the side gear backlash.

    1. Using a dial indicator, measure the side gear backlash while holding one pinion gear toward the differential case.

      Standard backlash:
      0.05 to 0.20 mm (0.00197 to 0.00787 in.)
      If the backlash is not as specified, install 2 side gear thrust washers with different thicknesses.


    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50
  1. Using a pin punch and hammer, tap in the straight pin through the differential case and hole of the pinion shaft.

  1. Stake the differential case.



2. INSTALL DIFFERENTIAL RING GEAR
  1. Clean the contact surfaces of the differential case and ring gear.

  1. Heat the ring gear in boiling water that is approximately 100°C (212°F).

  1. Carefully remove the ring gear from the boiling water.



    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Differential.Rear Differential Carrier Assembly.Rear Differential Carrier Assembly  Reassembly
  1. After the moisture on the ring gear has completely evaporated, quickly align the matchmarks on the ring gear and differential case and install the ring gear to the differential case.

    Text in Illustration
    *1
    Matchmark
  1. Temporarily install 5 new lock plates and the 10 bolts.

  1. After the ring gear cools down, diametrically tighten the 10 bolts uniformly in several passes.

    Torque:
    84 N*m{857 kgf*cm, 62 ft.*lbf}


    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Differential.Rear Differential Carrier Assembly.Rear Differential Carrier Assembly  Reassembly
  1. Using a chisel and hammer, stake the 5 lock plates.

    HINT:
    Strike the tab labeled A so that it is flush with the flat surface of the bolt. Strike the tab labeled B so that half of the tab contacts the bolt as shown in the illustration.


3. INSTALL REAR DIFFERENTIAL CASE BEARING


    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Differential.Rear Differential Carrier Assembly.Rear Differential Carrier Assembly  Reassembly
  1. Using SST and a press, press the 2 case bearings (inner) onto the differential case.

    SST
    09950-60010(09951-00560,09951-00570)
    09950-70010(09951-07150)


4. INSPECT DIFFERENTIAL RING GEAR RUNOUT


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50
  1. Install the differential case and 2 case bearings (outer) to the carrier, and install the 2 adjusting nuts so that there is no play in the bearing.

  1. Install the 2 bearing caps with the 4 bolts.

    Torque:
    85 N*m{870 kgf*cm, 63 ft.*lbf}
  1. Using a dial indicator, measure the runout of the ring gear.

    Maximum runout:
    0.07 mm (0.00276 in.)
    If the runout exceeds the specified maximum value, remove the ring gear and check the runout of the differential case.
  1. Remove the 4 bolts, 2 bearing caps, 2 adjusting nuts and differential case.



5. INSTALL REAR DRIVE PINION FRONT TAPERED ROLLER BEARING


    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Differential.Rear Differential Carrier Assembly.Rear Differential Carrier Assembly  Reassembly
  1. Using SST and a press, press the bearing (outer) into the carrier.

    SST
    09316-60011(09316-00011,09316-00021)


6. INSTALL REAR DRIVE PINION REAR TAPERED ROLLER BEARING


    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Differential.Rear Differential Carrier Assembly.Rear Differential Carrier Assembly  Reassembly
  1. Using SST and a press, press the bearing (outer) into the carrier.

    SST
    09316-60011(09316-00011,09316-00041)


7. INSTALL REAR DRIVE PINION REAR TAPERED ROLLER BEARING
  1. Install the plate washer to the drive pinion.

    HINT:
    First, install a washer that has the same thickness as the removed washer. After checking the tooth contact pattern, replace the washer with one of a different thickness if necessary.


    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Differential.Rear Differential Carrier Assembly.Rear Differential Carrier Assembly  Reassembly
  1. Using SST and a press, press the bearing (inner) onto the drive pinion.

    SST
    09506-30012


8. ADJUST DIFFERENTIAL DRIVE PINION PRELOAD


    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50
  1. Install the drive pinion, bearing (inner) and oil slinger.

    HINT:
    Install the spacer and oil seal after adjusting the gear contact pattern.


    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Differential.Rear Differential Carrier Assembly.Rear Differential Carrier Assembly  Reassembly
  1. Using SST, install the companion flange.

    SST
    09950-30012(09951-03010,09953-03010,09954-03010,09955-03030,09956-03040)
    Text in Illustration
    *a
    Turn
    *b
    Hold
    HINT:
    Before using SST (center bolt), apply hypoid gear oil to its threads and tip.
  1. Adjust the drive pinion preload by installing the drive pinion nut.



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

    SST
    09330-00021(09330-00030)
    Torque:
    370 N*m{3773 kgf*cm, 273 ft.*lbf}or less
    NOTICE:
    1. As there is no spacer, tighten a little at a time. Be careful not to overtighten the nut.
    2. Apply hypoid gear oil LSD to drive pinion thread and nut seat face.
  1. Using a torque wrench, measure the preload.

    Standard Drive Pinion Preload (Starting Torque):
    Bearing
    Specified Condition
    New bearing
    1.0 to 1.5 N*m (11 to 15 kgf*cm, 9 to 13 in.*lbf)
    Reused bearing
    0.5 to 0.7 N*m (6 to 7 kgf*cm, 5 to 6 in.*lbf)
    NOTICE:
    1. For a more accurate measurement, rotate the bearing forward and backward several times before measuring.
    2. Record the differential drive pinion preload for the total preload measurement.


9. INSTALL DIFFERENTIAL CASE ASSEMBLY


    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50
  1. Install the differential case and 2 case bearings (outer) to the differential carrier.

    HINT:
    Make sure the 2 case bearings (outer) are not interchanged.


10. INSTALL REAR DIFFERENTIAL BEARING ADJUSTING NUT


    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50
  1. Install the 2 adjusting nuts to the carrier, making sure the nuts are threaded properly.



11. INSPECT AND ADJUST DIFFERENTIAL RING GEAR AND DIFFERENTIAL DRIVE PINION BACKLASH


    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Differential.Rear Differential Carrier Assembly.Rear Differential Carrier Assembly  Reassembly
  1. Align the matchmarks on the caps and carrier.

    Text in Illustration
    *1
    Matchmark


    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50
  1. Install the right and left bearing caps with the 4 bolts.

    Torque:
    85 N*m{870 kgf*cm, 63 ft.*lbf}
    1. If the bearing cap does not fit tightly on the carrier, the adjusting nuts are not threaded properly.
      HINT:
      Reinstall the adjusting nuts if necessary.


    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Differential.Rear Differential Carrier Assembly.Rear Differential Carrier Assembly  Reassembly
  1. Loosen the 4 bearing cap bolts to the point where the adjusting nuts can be turned by SST.

    Text in Illustration
    *a
    for LH Side
    *b
    for RH Side
  1. Using SST, tighten the adjusting nut on the ring gear side until the ring gear has a backlash of about 0.2 mm (0.00787 in.).

    SST
    09504-00011
    09960-10010(09962-01000,09963-00700)
  1. While turning the ring gear, use SST to tighten the adjusting nut on the drive pinion side. After the bearings have settled, loosen the adjusting nut on the drive pinion side.

    SST
    09504-00011
    09960-10010(09962-01000,09963-00700)
  1. Using SST, tighten the adjusting nut 1 to 1.5 notches from the 0 preload position.



    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Differential.Rear Differential Carrier Assembly.Rear Differential Carrier Assembly  Reassembly
  1. Using a dial indicator, adjust the ring gear backlash until it is within the specification.

    Standard backlash:
    0.13 to 0.18 mm (0.00512 to 0.00708 in.)
    HINT:
    1. The backlash is adjusted by turning the left and right adjusting nuts by an equal amount. For example, loosen the nut on the right side one notch and loosen the nut on the left side one notch.
    2. Perform the measurement at 3 or more positions around the circumference of the ring gear.


    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50
  1. Tighten the bearing cap bolts.

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


12. INSPECT TOTAL PRELOAD


    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50
  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.
    NOTICE:
    Record the differential ring gear preload.


13. INSPECT TOOTH CONTACT BETWEEN RING GEAR AND DRIVE PINION


    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50
  1. Coat 3 or 4 teeth at 3 different positions on the ring gear with Prussian blue.

  1. Hold the companion flange firmly in place and rotate the ring gear in both directions.



  1. Inspect the tooth contact pattern.


    1. Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Differential.Rear Differential Carrier Assembly.Rear Differential Carrier Assembly  Reassembly


    2. Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Differential.Rear Differential Carrier Assembly.Rear Differential Carrier Assembly  Reassembly
      If the teeth are not contacting properly, use the following chart to select a proper washer.
      Text in Illustration
      *1
      Plate Washer
      Standard Plate Washer Thickness:
      Thickness mm (in.)
      Thickness mm (in.)
      1.69 to 1.71 (0.0666 to 0.0673)
      2.02 to 2.04 (0.0796 to 0.0803)
      1.72 to 1.74 (0.0678 to 0.0685)
      2.05 to 2.07 (0.0807 to 0.0814)
      1.75 to 1.77 (0.0689 to 0.0696)
      2.08 to 2.10 (0.0819 to 0.0826)
      1.78 to 1.80 (0.0701 to 0.0708)
      2.11 to 2.13 (0.0831 to 0.0838)
      1.81 to 1.83 (0.0713 to 0.0720)
      2.14 to 2.16 (0.0843 to 0.0850)
      1.84 to 1.86 (0.0725 to 0.0732)
      2.17 to 2.19 (0.0855 to 0.0862)
      1.87 to 1.89 (0.0737 to 0.0744)
      2.20 to 2.22 (0.0867 to 0.0874)
      1.90 to 1.92 (0.0748 to 0.0755)
      2.23 to 2.25 (0.0878 to 0.0885)
      1.93 to 1.95 (0.0760 to 0.0767)
      2.26 to 2.28 (0.0890 to 0.0897)
      1.96 to 1.98 (0.0772 to 0.0779)
      2.29 to 2.31 (0.0902 to 0.0909)
      1.99 to 2.01 (0.0784 to 0.0791)
      2.32 to 2.34 (0.0914 to 0.0921)


14. REMOVE REAR DRIVE PINION NUT


    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Differential.Rear Differential Carrier Assembly.Rear Differential Carrier Assembly  Reassembly
  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.Rear Differential Carrier Assembly  Reassembly
  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


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


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


16. REMOVE REAR DIFFERENTIAL DRIVE PINION OIL SLINGER


    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50
  1. Remove the oil slinger from the drive pinion.



17. REMOVE REAR DRIVE PINION FRONT TAPERED ROLLER BEARING


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

    SST
    09556-22010


18. INSTALL REAR DIFFERENTIAL DRIVE PINION BEARING SPACER


    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50
  1. Install a new bearing spacer.

    HINT:
    Make sure the spacer is installed correctly.


19. INSTALL DIFFERENTIAL OIL STORAGE RING
  1. Using a brass bar and hammer, tap in a new oil storage ring.

    NOTICE:
    Be careful not to damage the oil storage ring.


20. INSTALL REAR DRIVE PINION FRONT TAPERED ROLLER BEARING


    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50
  1. Install the bearing (inner) to the drive pinion.



21. INSTALL REAR DIFFERENTIAL DRIVE PINION OIL SLINGER


    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50
  1. Install the oil slinger to the drive pinion.



22. INSTALL REAR DIFFERENTIAL CARRIER OIL SEAL
  1. Apply MP grease to the lip of the oil seal.



    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Differential.Rear Differential Carrier Assembly.Rear Differential Carrier Assembly  Reassembly
  1. Using SST and a hammer, tap in a new seal.

    SST
    09554-30011
    Text in Illustration
    *a
    Oil Seal Depth
    Standard oil seal depth:
    0 +/-0.3 mm (0 +/-0.0118 in.)


23. INSTALL REAR DRIVE PINION COMPANION FLANGE SUB-ASSEMBLY WITH DUST DEFLECTOR


    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50
  1. Using SST, install 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.
  1. Apply hypoid gear oil LSD to drive pinion thread and nut seat face.



    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Differential.Rear Differential Carrier Assembly.Rear Differential Carrier Assembly  Reassembly
  1. Using SST to hold the companion flange in place, install a new nut.

    SST
    09330-00021(09330-00030)
    Text in Illustration
    *1
    Turn
    *1
    Hold
    Torque:
    370 N*m{3773 kgf*cm, 273 ft.*lbf}or less


24. INSPECT TOTAL PRELOAD
  1. Using a torque wrench, measure the preload with the teeth of the drive pinion and ring gear in contact.



    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50
  1. Using a torque wrench, measure the total preload.

    Standard Total Preload:
    Bearing
    Specified Condition
    New bearing
    1.1 to 1.6 N*m (12 to 16 kgf*cm, 10 to 14 in.*lbf) + ring gear preload
    Reused bearing
    0.6 to 0.8 N*m (7 to 8 kgf*cm, 6 to 7 in.*lbf) + ring gear preload
    1. If necessary, disassemble and inspect the differential.


25. INSPECT DIFFERENTIAL RING GEAR BACKLASH


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

    Standard backlash:
    0.13 to 0.18 mm (0.00511 to 0.00709 in.)
    1. If the backlash is not as specified, 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.


26. INSPECT REAR DRIVE PINION COMPANION FLANGE SUB-ASSEMBLY


    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Differential.Rear Differential Carrier Assembly.Rear Differential Carrier Assembly  Reassembly
  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:
    Item
    Specified Condition
    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.


27. STAKE DRIVE PINION NUT


    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50
  1. Using a chisel and hammer, stake the nut.



28. INSTALL REAR DIFFERENTIAL BEARING ADJUSTING NUT LOCK


    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50
  1. Install 2 new adjusting nut locks to the bearing caps with the 2 bolts.

    Torque:
    13 N*m{130 kgf*cm, 9 ft.*lbf}
  1. Bend the nut locks.