REAR DIFFERENTIAL CARRIER ASSEMBLY REASSEMBLY

Tech Tips

Use an overhaul stand as necessary.


  1. INSTALL DIFFERENTIAL RING GEAR


    1. Clean the contact surfaces of the rear differential case sub-assembly and differential ring gear.

    2. Heat the differential ring gear in boiling water.

    3. Carefully remove the differential ring gear from the boiling water.

      CAUTION:

      Do not burn yourself.

    4. A01EIV6E05
      Text in Illustration
      *a Matchmark

      Secure the rear differential case sub-assembly between aluminum plates in a vise.

      Note

      Do not overtighten the vise.

    5. After the moisture on the differential ring gear has completely evaporated, quickly install the differential ring gear to the rear differential case sub-assembly.

    6. Align the matchmarks on the rear differential case sub-assembly and differential ring gear, and install the differential ring gear.

    7. Temporarily install 12 new rear differential case bolts to which thread lock has been applied.

      Adhesive
      Toyota Genuine Adhesive 1360K, Three Bond 1360K or equivalent.

    8. After the ring gear has cooled sufficiently, tighten the 12 new rear differential case bolts.

      Torque:
      99 N*m  { 1005 kgf*cm, 73 ft.*lbf }

      Note


      • New rear differential case bolts should be used every time the differential ring gear is installed.

      • Install the new rear differential case bolts by tightening diametrically opposite bolts uniformly in several passes.

      • Tighten the rear differential case bolts after the differential ring gear has cooled down sufficiently.

      • Do not allow any oil to contact the rear differential case bolt, differential ring gear threads or rear differential case sub-assembly seating surface.

  2. INSTALL REAR DIFFERENTIAL CASE BEARING (for LH Side)

    Note

    New bearings are coated with anti-rust oil. If using new bearings, do not wash it off.

    Tech Tips

    Perform this step only when replacing the rear differential case bearing or rear differential case sub-assembly.


    1. A01EJRAE02

      Using SST and a press, install a new rear differential case bearing (LH side inner race) to the rear differential case sub-assembly.

      SST
      09223-46011

      Note

      Replace the inner and outer races as a set.

  3. INSTALL REAR DIFFERENTIAL CASE BEARING (for RH Side)

    Note

    New bearings are coated with anti-rust oil. If using new bearings, do not wash it off.

    Tech Tips

    Perform this step only when replacing the rear differential case bearing or rear differential case sub-assembly.


    1. A01EJEGE02

      Using SST and a press, install the rear differential case bearing (RH side inner race) to the rear differential case sub-assembly.

      SST
      09223-46011

      Note

      Replace the inner and outer races as a set.

  4. INSTALL STRAIGHT PIN


    1. Using a plastic hammer, install the 4 straight pins to the rear differential carrier.

      A01EISNE02
      Protrusion (A)
      8 to 9 mm (0.315 to 0.354 in.)

  5. INSTALL REAR DRIVE PINION REAR TAPERED ROLLER BEARING

    Note

    New bearings are coated with anti-rust oil. If using new bearings, do not wash it off.


    1. A01EK2TE01
      Text in Illustration
      *1 Rear Drive Pinion Rear Tapered Roller Bearing (Outer Race)

      Using SST, bolt, nuts and washers, install the rear drive pinion rear tapered roller bearing (outer race) to the rear differential carrier.

      SST
      09950-60010   ( 09951-00500, 09951-00530 )
      09950-60020   ( 09951-00680, 09951-00890 )

      Tech Tips

      Use M12 x P1.5 bolts with shaft lengths of 124 mm (4.88 in.) and M12 x P1.5 nuts for installation.

  6. INSTALL REAR DRIVE PINION FRONT TAPERED ROLLER BEARING

    Note

    New bearings are coated with anti-rust oil. If using new bearings, do not wash it off.


    1. A01EINEE01
      Text in Illustration
      *1 Rear Drive Pinion Front Tapered Roller Bearing (Outer Race)

      Using SST and a press, install the rear drive pinion front tapered roller bearing (outer race) to the rear differential carrier.

      SST
      09950-60010   ( 09951-00610 )
      09950-70010   ( 09951-07150 )

  7. INSTALL REAR DRIVE PINION REAR TAPERED ROLLER BEARING

    Note

    New bearings are coated with anti-rust oil. If using new bearings, do not wash it off.


    1. Install the rear differential drive pinion plate washer to the differential drive pinion.

      Note

      Install each rear differential drive pinion plate washer to the position it was removed from.

    2. A01EKIEE01

      Using SST and a press, install the rear drive pinion rear tapered roller bearing (inner race) to the differential drive pinion.

      SST
      09506-30012

  8. INSTALL REAR DIFFERENTIAL CASE BEARING (for LH Side)

    Note

    New bearings are coated with anti-rust oil. If using new bearings, do not wash it off.

    Tech Tips

    Replace the rear differential case bearing (LH side outer race) when removing the rear differential case bearing (LH side inner race) from the rear differential case sub-assembly.


    1. A01ELZEE01
      Text in Illustration
      *1 Rear Differential Case Bearing (LH Side Outer Race)
      *2 Rear Differential Side Gear Shaft Plate Washer

      Using SST and a press, install the rear differential side gear shaft plate washer and a new rear differential case bearing (LH side outer race) to the differential side bearing retainer.

      SST
      09950-60020   ( 09951-00680 )
      09950-70010   ( 09951-07150 )

      Note


      • Install each rear differential side gear shaft plate washer to the position it was removed from.

      • Replace the inner and outer races as a set.

      • Install the rear differential side gear shaft oil seal after performing the tooth contact inspection and backlash adjustment.

  9. INSTALL REAR DIFFERENTIAL CASE BEARING (for RH Side)

    Note

    New bearings are coated with anti-rust oil. If using new bearings, do not wash it off.


    1. A01EM9EE01
      Text in Illustration
      *1 Rear Differential Case Bearing (RH Side Outer Race)
      *2 Rear Differential Side Gear Shaft Plate Washer

      Using SST and a press, install the rear differential side gear shaft plate washer and the rear differential case bearing (RH side outer race) to the rear differential carrier.

      SST
      09950-60020   ( 09951-00680 )
      09950-70010   ( 09951-07150 )

      Note


      • Install each rear differential side gear shaft plate washer to the position it was removed from.

      • Replace the inner and outer races as a set.

      • Install the rear differential side gear shaft oil seal after performing the tooth contact inspection and backlash adjustment.

  10. ADJUST DIFFERENTIAL DRIVE PINION PRELOAD


    1. A01EIZA

      Install the differential drive pinion with rear drive pinion rear tapered roller bearing (inner race) to the rear differential carrier.

    2. Apply hypoid gear oil LSD to the threads of a new rear drive pinion nut and its seating surface.

    3. Install the rear drive pinion front tapered roller bearing (inner race) and rear drive pinion nut to the differential drive pinion.

      Note

      New bearings are coated with anti-rust oil. If using new bearings, do not wash it off.

    4. A01EKG3E01
      Text in Illustration
      *a Turn
      *b Hold
      *c Torque Wrench Fulcrum Length

      Using SST, gradually tighten the rear drive pinion nut until the specified preload is reached. Do not exceed the torque limit shown below.

      SST
      09556-16011
      09564-16020
      Torque:
      Specified tightening torque
      321 N*m  { 3273 kgf*cm, 237 ft.*lbf, or less }

      Note


      • Tighten the rear drive pinion nut gradually. Never tighten it excessively.

      • This torque value is effective when SST is parallel to the torque wrench.

      • Calculate the torque wrench reading when changing the fulcrum length of the torque wrench Click here.

      • When using SST (fulcrum length of 50 mm (1.97 in.)) + torque wrench (fulcrum length of 750 mm (2.46 ft.)): 301 N*m (3069 kgf*cm, 222 ft.*lbf) or less

    5. A01ELUNE01

      Using SST and a torque wrench, measure the preload (starting torque) of the differential drive pinion.

      SST
      09556-16011
      Standard Drive Pinion Preload (Starting Torque)
      New bearing 1.83 to 3.04 N*m (19 to 30 kgf*cm, 17 to 26 in.*lbf)
      Reused bearing 1.51 to 2.52 N*m (16 to 25 kgf*cm, 14 to 22 in.*lbf)

      Tech Tips

      For a more accurate measurement, rotate the bearing forward and backward before inspection.

  11. INSTALL REAR DIFFERENTIAL CASE ASSEMBLY


    1. Using a scraper and wire brush, remove the seal packing from the rear differential carrier and differential side bearing retainer.

      Note


      • Do not damage the contact surface.

      • Be sure to completely remove all seal packing from the rear differential carrier and differential side bearing retainer.

      • Do not allow the removed seal packing to enter the rear differential carrier.

    2. A01EMRF

      Install the rear differential case assembly to the rear differential carrier.

    3. A01EJE0

      Install the differential side bearing retainer to the rear differential carrier with the 10 bolts.

      Torque:
      42 N*m  { 430 kgf*cm, 31 ft.*lbf }

  12. INSPECT DIFFERENTIAL RING GEAR BACKLASH


    1. A01ELOUE01

      Insert a dial indicator and magnetic base through the rear differential filler plug hole, and set it perpendicular to a differential ring gear tooth tip.

    2. Using SST, hold the differential drive pinion in place.

      SST
      09556-16011

    3. Using SST, rotate the rear differential case assembly forward and backward, and measure the backlash.

      SST
      09564-32011
      Backlash
      0.13 to 0.25 mm (0.00512 to 0.00984 in.)

      Tech Tips

      Measure at 3 or more areas on the circumference of the differential ring gear.

    4. If the result is not within the specified range, select rear differential side gear shaft plate washers that are thicker or thinner as necessary. Adjust the thickness of the left and right rear differential side gear shaft plate washers in equal increments. Then install the rear differential case bearing (outer race).

      Tech Tips


      • Adjust the thickness of the LH and RH rear differential side gear shaft plate washers by the same amount each time until the backlash is within the standard range. If the thickness on the LH side is increased, decrease the thickness on the RH side, and if the thickness on the LH side is decreased, increase the thickness on the RH side.

      • When the backlash is smaller than the specified value, select a thick rear differential side gear shaft plate washer for the RH side and thin rear differential side gear shaft plate washer for the LH side.

      • When the backlash is larger than the specified value, select a thin rear differential side gear shaft plate washer for the RH side and thick rear differential side gear shaft plate washer for the LH side.

      Rear Differential Side Gear Shaft Plate Washer
      Mark Thickness mm (in.) Mark Thickness mm (in.)
      75 1.74 to 1.76 (0.0686 to 0.0692) 96 2.34 to 2.36 (0.0922 to 0.0929)
      76 1.77 to 1.79 (0.0697 to 0.0704) 97 2.37 to 2.39 (0.0934 to 0.0940)
      77 1.80 to 1.82 (0.0709 to 0.0716) 98 2.40 to 2.42 (0.0945 to 0.0952)
      78 1.83 to 1.85 (0.0721 to 0.0728) 99 2.43 to 2.45 (0.0957 to 0.0964)
      79 1.86 to 1.88 (0.0733 to 0.0740) 00 2.46 to 2.48 (0.0969 to 0.0976)
      80 1.89 to 1.91 (0.0745 to 0.0751) 01 2.49 to 2.51 (0.0981 to 0.0988)
      81 1.92 to 1.94 (0.0756 to 0.0763) 02 2.52 to 2.54 (0.0993 to 0.0999)
      82 1.95 to 1.97 (0.0768 to 0.0775) 03 2.55 to 2.57 (0.1004 to 0.1011)
      83 1.98 to 2.00 (0.0780 to 0.0787) 04 2.58 to 2.60 (0.1016 to 0.1023)
      84 2.01 to 2.03 (0.0792 to 0.0799) 05 2.61 to 2.63 (0.1028 to 0.1035)
      85 2.04 to 2.06 (0.0804 to 0.0811) 06 2.64 to 2.66 (0.1040 to 0.1047)
      86 2.07 to 2.09 (0.0815 to 0.0822) 07 2.67 to 2.69 (0.1052 to 0.1059)
      88 2.10 to 2.12 (0.0827 to 0.0834) 08 2.70 to 2.72 (0.1063 to 0.1070)
      89 2.13 to 2.15 (0.0839 to 0.0846) 09 2.73 to 2.75 (0.1075 to 0.1082)
      90 2.16 to 2.18 (0.0851 to 0.0858) 10 2.76 to 2.78 (0.1087 to 0.1094)
      91 2.19 to 2.21 (0.0863 to 0.0870) 11 2.79 to 2.81 (0.1099 to 0.1106)
      92 2.22 to 2.24 (0.0875 to 0.0881) 12 2.82 to 2.84 (0.1111 to 0.1118)
      93 2.25 to 2.27 (0.0886 to 0.0893) 13 2.85 to 2.87 (0.1123 to 0.1129)
      94 2.28 to 2.30 (0.0898 to 0.0905) 14 2.88 to 2.90 (0.1134 to 0.1141)
      95 2.31 to 2.33 (0.0910 to 0.0917) - -

  13. ADJUST TOOTH CONTACT BETWEEN RING GEAR AND DRIVE PINION


    1. Remove the 10 bolts and the differential side bearing retainer.

    2. Remove the rear differential case assembly from the rear differential carrier.

    3. Coat 3 or 4 teeth at 4 different positions on the differential ring gear with Prussian blue.

    4. Install the rear differential case assembly to the rear differential carrier.

    5. A01EJE0

      Install the differential side bearing retainer with the 10 bolts.

      Torque:
      42 N*m  { 430 kgf*cm, 31 ft.*lbf }

    6. Turn the differential drive pinion at least 10 times.

    7. Remove the 10 bolts and the differential side bearing retainer.

    8. Remove the rear differential case assembly from the rear differential carrier.

    9. Inspect the tooth contact pattern.

      A01EKNJE05
      Text in Illustration
      *a Proper Contact *b Heel Contact
      *c Face Contact *d Select washers that will bring the drive pinion closer to the ring gear
      *e Toe Contact *f Flank Contact
      *g Select washers that will bring the drive pinion away from the ring gear - -

      Tech Tips

      Check the tooth contact pattern at 2 or more positions on the circumference of the differential ring gear.

    10. Perform the following procedure for face or flank contact:


      1. If the result is not within the specified range, select rear differential side gear shaft plate washers that are thicker or thinner as necessary. Adjust the thickness of the left and right rear differential side gear shaft plate washers in equal increments. Then install the rear differential case bearing (outer race).

      2. Repeat the differential ring gear and differential drive pinion tooth contact pattern inspection.

        Tech Tips

        If the tooth contact pattern is not correct, reselect rear differential side gear shaft plate washers and reinspect the tooth contact pattern.

      3. Repeat the differential ring gear and differential drive pinion backlash inspection.

        Tech Tips

        If the differential ring gear and differential drive pinion backlash are not as specified, reselect the rear differential drive pinion plate washer and then readjust the differential drive pinion preload, differential ring gear and differential drive pinion backlash and reinspect the tooth contact pattern.

    11. Perform the following procedure for heel or toe contact:


      1. A01EIWYE02
        Text in Illustration
        *1 Rear Differential Drive Pinion Plate Washer

        Select a rear differential drive pinion plate washer again and install the rear drive pinion rear tapered roller bearing (inner race).

        Rear Differential Drive Pinion Plate Washer
        Mark Thickness mm (in.) Mark Thickness mm (in.)
        41 1.695 to 1.705 (0.0667 to 0.0671) 73 1.975 to 1.985 (0.0778 to 0.0781)
        43 1.715 to 1.725 (0.0675 to 0.0679) 75 1.995 to 2.005 (0.0785 to 0.0789)
        45 1.735 to 1.745 (0.0683 to 0.0687) 77 2.015 to 2.025 (0.0793 to 0.0797)
        47 1.755 to 1.765 (0.0690 to 0.0695) 79 2.035 to 2.045 (0.0801 to 0.0805)
        49 1.775 to 1.785 (0.0699 to 0.0703) 81 2.055 to 2.065 (0.0809 to 0.0813)
        51 1.795 to 1.805 (0.0707 to 0.0711) 83 2.075 to 2.085 (0.0817 to 0.0821)
        53 1.815 to 1.825 (0.0715 to 0.0719) 85 2.095 to 2.105 (0.0825 to 0.0829)
        55 1.835 to 1.845 (0.0722 to 0.0726) 87 2.115 to 2.125 (0.0833 to 0.0837)
        57 1.855 to 1.865 (0.0730 to 0.0734) 89 2.135 to 2.145 (0.0841 to 0.0844)
        59 1.875 to 1.885 (0.0738 to 0.0742) 91 2.155 to 2.165 (0.0848 to 0.0852)
        61 1.895 to 1.905 (0.0746 to 0.0750) 93 2.175 to 2.185 (0.0856 to 0.0860)
        63 1.915 to 1.925 (0.0754 to 0.0758) 95 2.195 to 2.205 (0.0864 to 0.0868)
        65 1.935 to 1.945 (0.0762 to 0.0766) 97 2.215 to 2.225 (0.0873 to 0.0875)
        71 1.955 to 1.965 (0.0770 to 0.0774) 99 2.235 to 2.245 (0.0880 to 0.0883)

    12. Readjust the differential drive pinion preload, differential ring gear and differential drive pinion backlash and reinspect the tooth contact pattern.

  14. INSPECT TOTAL PRELOAD


    1. A01ELUNE01

      Using SST and a torque wrench, measure the total preload (starting torque) with the teeth of the differential drive pinion and differential ring gear in contact.

      SST
      09556-16011
      Standard Total Preload (Starting Torque)
      New bearing 3.12 to 5.86 N*m (32 to 59 kgf*cm, 28 to 51 in.*lbf)
      Reused bearing 2.80 to 5.34 N*m (29 to 54 kgf*cm, 25 to 47 in.*lbf)

      Tech Tips

      For a more accurate measurement, rotate the rear differential case bearing forward and backward before measuring.

    2. If the results are not within the specification, perform the procedure below:


      1. Select a thicker or thinner rear differential side gear shaft plate washer for the RH side, and then install the rear differential case bearing outer race (RH side only).

      2. Repeat the total preload measurement.

      3. Repeat the differential ring gear and differential drive pinion backlash inspection.

      4. Repeat the differential ring gear and differential drive pinion tooth contact pattern inspection.

  15. REMOVE DIFFERENTIAL SIDE BEARING RETAINER


    1. A01EJE0

      Remove the 10 bolts and differential side bearing retainer.

  16. REMOVE REAR DIFFERENTIAL CASE ASSEMBLY


    1. A01EMRF

      Remove the rear differential case assembly from the rear differential carrier.

  17. REMOVE DIFFERENTIAL DRIVE PINION


    1. A01EIZA

      Remove the differential drive pinion from the rear differential carrier.

  18. INSTALL REAR DIFFERENTIAL DRIVE PINION BEARING SPACER


    1. A01ELFI

      Install a new rear differential drive pinion bearing spacer to the differential drive pinion.

      Tech Tips

      Face the smaller inside diameter towards the front of the vehicle.

  19. INSTALL REAR DIFFERENTIAL DRIVE PINION OIL SLINGER


    1. A01EK6W

      Install the rear differential drive pinion oil slinger to the differential drive pinion.

  20. INSTALL DIFFERENTIAL DRIVE PINION


    1. A01EIZA

      Install the differential drive pinion to the rear differential carrier.

    2. A01EJE0

      Install the differential side bearing retainer with the 10 bolts.

      Torque:
      42 N*m  { 430 kgf*cm, 31 ft.*lbf }

  21. TEMPORARILY TIGHTEN REAR DRIVE PINION NUT


    1. Apply hypoid gear oil LSD to the threads of the rear drive pinion nut and its seating surface.

    2. A01EL8TE02
      Text in Illustration
      *a Turn
      *b Hold

      Using SST, temporarily install the rear drive pinion nut to the differential drive pinion.

      SST
      09556-16011
      09564-16020
    3. A01ELUNE01

      Using SST and a torque wrench, inspect the differential drive pinion preload (starting torque).

      SST
      09556-16011
      Standard Drive Pinion Preload (Starting Torque)
      New bearing 1.83 to 3.04 N*m (19 to 30 kgf*cm, 17 to 26 in.*lbf)
      Reused bearing 1.51 to 2.52 N*m (16 to 25 kgf*cm, 14 to 22 in.*lbf)

      Tech Tips

      For a more accurate measurement, rotate the bearing forward and backward before adjustment.

    4. A01EKG3E01
      Text in Illustration
      *a Turn
      *b Hold
      *c Torque Wrench Fulcrum Length

      If the preload is insufficient, use SST to tighten the rear drive pinion nut 5° to 10° at a time. Measure the drive pinion preload and repeat the adjustment as necessary until the preload matches the specified torque.

      SST
      09556-16011
      09564-16020
      Torque:
      Specified tightening torque
      321 N*m  { 3273 kgf*cm, 237 ft.*lbf, or less }

      Note


      • Tighten the rear drive pinion nut gradually. Never tighten it excessively.

      • This torque value is effective when SST is parallel to the torque wrench.

      • Calculate the torque wrench reading when changing the fulcrum length of the torque wrench Click here.

      • When using SST (fulcrum length of 50 mm (1.97 in.)) + torque wrench (fulcrum length of 750 mm (2.46 ft.)): 301 N*m (3069 kgf*cm, 222 ft.*lbf) or less

    5. If the tightening torque of the rear drive pinion nut exceeds the specified torque but the preload is still insufficient, remove the rear drive pinion nut. Then check if the rear drive pinion nut and differential drive pinion screw threads are damaged.

    6. If no damage is found, replace the rear differential drive pinion bearing spacer, apply hypoid gear oil LSD to rear drive pinion nut threads and repeat the procedure above.

  22. REMOVE DIFFERENTIAL SIDE BEARING RETAINER


    1. A01EJE0

      Remove the 10 bolts and differential side bearing retainer.

  23. INSTALL REAR DIFFERENTIAL BREATHER PLUG OIL DEFLECTOR


    1. A01EKQD

      Install the rear differential breather plug oil deflector with the 2 bolts.

      Torque:
      6.5 N*m  { 66 kgf*cm, 58 in.*lbf }

  24. INSTALL REAR DIFFERENTIAL CASE ASSEMBLY


    1. A01EMRF

      Install the rear differential case assembly to the rear differential carrier.

  25. INSTALL DIFFERENTIAL SIDE BEARING RETAINER


    1. A01EJE0

      Install the differential side bearing retainer to the rear differential carrier with the 10 bolts.

      Torque:
      42 N*m  { 430 kgf*cm, 31 ft.*lbf }

  26. INSPECT DIFFERENTIAL RING GEAR BACKLASH


    1. A01ELOUE01

      Insert a dial indicator and magnetic base through the rear differential filler plug hole, and set it perpendicular to a differential ring gear tooth tip.

    2. Using SST, hold the differential drive pinion in place.

      SST
      09556-16011

    3. Using SST, rotate the rear differential case assembly forward and backward, and measure the backlash.

      SST
      09564-32011
      Backlash
      0.13 to 0.25 mm (0.00512 to 0.00984 in.)

      If the backlash is not within the specification, adjust the side bearing preload or repair as necessary.

      Tech Tips

      Measure at 3 or more areas on the circumference of the differential ring gear.

  27. INSPECT TOTAL PRELOAD


    1. A01ELUNE01

      Using SST and a torque wrench, measure the total preload (starting torque) with the teeth of the differential drive pinion and differential ring gear in contact.

      SST
      09556-16011
      Standard Total Preload (Starting Torque)
      New bearing 3.12 to 5.86 N*m (32 to 59 kgf*cm, 28 to 51 in.*lbf)
      Reused bearing 2.80 to 5.34 N*m (29 to 54 kgf*cm, 25 to 47 in.*lbf)

      Tech Tips

      For a more accurate measurement, rotate the rear differential case bearing forward and backward before measuring.

    2. If the results are not within the specification, perform the procedure below:


      1. Select a thicker or thinner rear differential side gear shaft plate washer for the RH side, and then install the rear differential case bearing outer race (RH side only).

      2. Repeat the total preload measurement.

      3. Repeat the differential ring gear and differential drive pinion backlash inspection.

      4. Repeat the differential ring gear and differential drive pinion tooth contact pattern inspection.

  28. INSTALL DIFFERENTIAL SIDE BEARING RETAINER


    1. A01EJE0

      Remove the 10 bolts and differential side bearing retainer.

    2. Using a non-residue solvent, remove grease and oil from the contact surfaces of the rear differential carrier and differential side bearing retainer.

      Note

      Do not damage the contact surface.

    3. A01EKKXE02
      Text in Illustration
      *a 2.0 mm (0.0787 in.)
      *b 3.0 mm (0.118 in.)
      *c 20 mm (0.787 in.)
      *d 2 to 3 mm (0.0787 to 0.118 in.)

      Apply seal packing to the areas indicated in the illustration of the rear differential carrier.

      Seal packing
      Toyota Genuine Seal Packing 1281, Three Bond 1281 or equivalent

      Note


      • Start applying seal packing within range (A).

      • Make sure that the clearance from the center of the bead is within 1 mm (0.0394 in.).

      • Apply seal packing in a continuous bead 2 to 3 mm (0.0787 to 0.118 in.) in diameter.

      • If there is an area where seal packing is not applied in a continuous bead, be sure to apply seal packing by overlapping the ends of the bead at least 10 mm (0.394 in.).

      • Stop applying seal packing after allowing it to overlap with the beginning of the bead by at least 10 mm (0.394 in.) within range (A) in the illustration.

      • Install the differential side bearing retainer within 10 minutes after applying seal packing. If the differential side bearing retainer is not installed within 10 minutes after applying seal packing, completely remove and then reapply seal packing.

    4. A01EJE0

      Install the differential side bearing retainer to the rear differential carrier with the 10 bolts.

      Torque:
      42 N*m  { 430 kgf*cm, 31 ft.*lbf }

      Note

      After installing the differential side bearing retainer, do not add oil or drive the vehicle for at least 1 hour. In addition, avoid sudden acceleration and deceleration for a minimum of 12 hours.

  29. INSPECT TOTAL PRELOAD


    1. A01ELUNE01

      Using SST and a torque wrench, measure the total preload (starting torque) with the teeth of the differential drive pinion and differential ring gear in contact.

      SST
      09556-16011
      Standard Total Preload (Starting Torque)
      New bearing 3.12 to 5.86 N*m (32 to 59 kgf*cm, 28 to 51 in.*lbf)
      Reused bearing 2.80 to 5.34 N*m (29 to 54 kgf*cm, 25 to 47 in.*lbf)

      Tech Tips

      For a more accurate measurement, rotate the rear differential case bearing forward and backward before measuring.

  30. INSPECT DIFFERENTIAL RING GEAR BACKLASH


    1. A01ELOUE01

      Insert a dial indicator and magnetic base through the rear differential filler plug hole, and set it perpendicular to a differential ring gear tooth tip.

    2. Using SST, hold the differential drive pinion in place.

      SST
      09556-16011

    3. Using SST, rotate the rear differential case assembly forward and backward, and measure the backlash.

      SST
      09564-32011
      Backlash
      0.13 to 0.25 mm (0.00512 to 0.00984 in.)

      If the backlash is not within the specification, adjust the side bearing preload or repair as necessary.

      Tech Tips

      Measure at 3 or more areas on the circumference of the differential ring gear.

  31. INSTALL REAR DRIVE PINION NUT


    1. A01EMQD

      Using a chisel and a hammer, stake the rear drive pinion nut as shown in the illustration.

  32. INSTALL DIAPHRAGM OIL SEAL


    1. A01EL1KE02
      Text in Illustration
      *1 Diaphragm Oil Seal

      Using SST and a press, install a new diaphragm oil seal into the rear differential carrier assembly.

      SST
      09506-35010
      09554-22010
      Standard Distance (A)
      0.7 to 1.3 mm (0.0276 to 0.0511 in.)

      Note


      • Install the diaphragm oil seal uniformly.

      • Press fit the diaphragm oil seal straight.

  33. INSTALL REAR DIFFERENTIAL SIDE GEAR SHAFT OIL SEAL (for LH Side)


    1. A01EL6GE02
      Text in Illustration
      *1 Rear Differential Side Gear Shaft Oil Seal

      Using SST and a press, install a new rear differential side gear shaft oil seal into the differential side bearing retainer.

      SST
      09223-46011
      09631-32020
      Standard Distance (A)
      8.2 to 8.8 mm (0.323 to 0.346 in.)

      Note


      • Install the rear differential side gear shaft oil seal uniformly.

      • Press fit the rear differential side gear shaft oil seal straight.

  34. INSTALL REAR DIFFERENTIAL SIDE GEAR SHAFT OIL SEAL (for RH Side)


    1. A01EL30E02
      Text in Illustration
      *1 Rear Differential Side Gear Shaft Oil Seal

      Using SST and a press, install a new rear differential side gear shaft oil seal into the rear differential carrier.

      SST
      09223-46011
      09631-32020
      Standard Distance (A)
      8.2 to 8.8 mm (0.323 to 0.346 in.)

      Note


      • Install the rear differential side gear shaft oil seal uniformly.

      • Press fit the rear differential side gear shaft oil seal straight.

  35. INSTALL CONNECTOR CLAMP BRACKET


    1. A01EJWY

      Install the connector clamp bracket with the bolt.

      Torque:
      15 N*m  { 150 kgf*cm, 11 ft.*lbf }

    2. Engage the claw to install the electro magnetic control coupling wire harness connector.

      Note

      Do not damage the electro magnetic control coupling wire harness.

  36. INSTALL TRANSMISSION COUPLING SPACER


    1. A01EKCHE01
      Text in Illustration
      *1 Transmission Coupling Spacer

      Install the transmission coupling spacer to the rear differential carrier assembly.

      Note

      Keep the transmission coupling spacer free of oil and foreign matter.

  37. INSTALL TRANSMISSION COUPLING CONICAL SPRING WASHER


    1. A01EK2BE01
      Text in Illustration
      *1 Transmission Coupling Conical Spring Washer

      Install the transmission coupling conical spring washer to the rear differential carrier assembly as shown in the illustration.

      Note

      Keep the transmission coupling conical spring washer free of oil and foreign matter.

  38. INSTALL REAR DIFFERENTIAL DUST DEFLECTOR


    1. A01EJ27E01

      Using SST and a press, install the rear differential dust deflector.

      SST
      09223-15030
      09950-70010   ( 09951-07150 )
      Standard Distance (A)
      0 to 0.6 mm (0 to 0.0236 in.)

      Note

      Do not damage the end surface of the electro magnetic control coupling sub-assembly.

      Tech Tips

      If the end surface of the electro magnetic control coupling sub-assembly is damaged while installing the rear differential dust deflector, replace the electro magnetic control coupling sub-assembly with a new one.

  39. INSTALL STUD BOLT


    1. Temporarily install 4 new stud bolts to the electro magnetic control coupling sub-assembly.

    2. A01EK1RE01
      Text in Illustration
      *a Upper Nut
      *b Lower Nut
      *c Hold
      *d Turn

      Install 2 service nuts to the stud bolt.

      Recommended Service Nut
      Thread Diameter
      8.0 mm (0.315 in.)
      Thread Pitch
      1.25 mm (0.0492 in.)

    3. Lock the upper nut using the lower nut.

    4. A01EMOCE01

      Turn the upper nut and tighten the other 3 stud bolts to the electro magnetic control coupling sub-assembly in the same way.

      Torque:
      9.8 N*m  { 100 kgf*cm, 87 in.*lbf }
      Standard Distance (A)
      29.1 to 32.4 mm (1.15 to 1.27 in.)

      Note

      Prevent foreign matter from entering the electro magnetic control coupling sub-assembly.

      Tech Tips

      If the threads of the electro magnetic control coupling sub-assembly are damaged while installing the stud bolt, replace the electro magnetic control coupling sub-assembly with a new one.

  40. INSTALL ELECTRO MAGNETIC CONTROL COUPLING SUB-ASSEMBLY


    1. Using a scraper and wire brush, remove the seal packing from the rear differential carrier assembly and electro magnetic control coupling sub-assembly.

      Note


      • Do not damage the contact surface.

      • Be sure to completely remove all seal packing from the rear differential carrier assembly and electro magnetic control coupling sub-assembly.

      • Do not allow the removed seal packing to enter the rear differential carrier assembly and electro magnetic control coupling sub-assembly.

    2. Using a non-residue solvent, remove grease and oil from the contact surfaces of the rear differential carrier assembly and the electro magnetic control coupling sub-assembly.

      Note

      Do not damage the contact surface.

    3. A01ELJ4E02
      Text in Illustration
      *a 20 mm (0.787 in.)
      *b 1.0 mm (0.0394 in.)
      *c 1.4 mm (0.0551 in.)
      *d 3.0 mm (0.118 in.)
      *d 2.0 mm (0.0787 in.)

      Apply seal packing to the areas indicated in the illustration of the rear differential carrier assembly.

      Seal packing
      Toyota Genuine Seal Packing 1281, Three Bond 1281 or equivalent

      Note


      • Start applying seal packing within range (A).

      • Make sure that the clearance from the center of the bead is within 1 mm (0.0394 in.).

      • Apply seal packing in a continuous bead 2 to 3 mm (0.0787 to 0.118 in.) in diameter.

      • If there is an area where seal packing is not applied in a continuous bead, be sure to apply seal packing by overlapping the ends of the bead at least 10 mm (0.394 in.).

      • Stop applying seal packing after allowing it to overlap with the beginning of the bead by at least 10 mm (0.394 in.) within range (A) in the illustration.

      • Install the electro magnetic control coupling sub-assembly within 10 minutes after applying seal packing. If the electro magnetic control coupling sub-assembly is not installed within 10 minutes after applying seal packing, completely remove and then reapply seal packing.

      • After installing the electro magnetic control coupling sub-assembly, do not immediately add oil or drive the vehicle for at least 1 hour.

    4. A01EMPL

      Install the electro magnetic control coupling sub-assembly with the 4 bolts.

      Torque:
      20 N*m  { 200 kgf*cm, 14 ft.*lbf }

      Note


      • Do not damage the diaphragm oil seal.

      • Do not damage the contact surface of the rear differential carrier assembly and electro magnetic control coupling sub-assembly.

  41. INSTALL REAR DIFFERENTIAL CARRIER COVER BREATHER PLUG


    1. A01EL1Q

      Using a socket wrench, service nut and a hammer, install a new rear differential carrier cover breather plug to the rear differential carrier.

      Note

      Tap the rear differential carrier cover breather plug in until the flange meets the edge of the rear differential carrier.

      Tech Tips


      • Use a service nut with an inner diameter of 13 mm (0.512 in.) and a socket wrench appropriate for the service nut.

      • Tap in the rear differential carrier cover breather plug until it sits flush with the rear differential carrier.

  42. INSPECT RUNOUT OF ELECTRO MAGNETIC CONTROL COUPLING SUB-ASSEMBLY


    1. A01ELQ3E01

      Install a dial indicator and magnetic base perpendicular to the inner side of the electro magnetic control coupling sub-assembly as shown in the illustration.

    2. Using SST, rotate the electro magnetic control coupling sub-assembly forward and backward, and measure the vertical runout.

      SST
      09564-32011
      Maximum Runout
      0.06 mm (0.00236 in.)

      If the runout is greater than the maximum value, replace the electro magnetic control coupling sub-assembly.

    3. Install a dial indicator and magnetic base perpendicular to the electro magnetic control coupling sub-assembly as shown in the illustration.

    4. Using SST, rotate the electro magnetic control coupling sub-assembly forward and backward, and measure the lateral runout.

      SST
      09564-32011
      Maximum Runout
      0.07 mm (0.00276 in.)

      If the runout is greater than the maximum value, replace the electro magnetic control coupling sub-assembly.

  43. INSTALL REAR DIFFERENTIAL FILLER PLUG


    1. A01EK6I

      Install a new gasket and the rear differential filler plug.

      Torque:
      49 N*m  { 500 kgf*cm, 36 ft.*lbf }