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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> Drivelines & Axles >> Differentials & Drive Axles >> Axle And Differential - Service Information (2 Of 2) >> REAR DIFFERENTIAL CARRIER ASSEMBLY (for Dynamic Torque Control AWD) >> Disassembly [12/2019 - ] >> Procedure

Disassembly [12/2019 - ]: Procedure

  1. REMOVE DIFFERENTIAL DISCONNECT COVER 
    1. Remove the 4 bolts and differential disconnect cover from the rear differential carrier assembly.
      GTY849667Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. REMOVE CLUTCH CONTROL SOLENOID WIRE 
    1. Disconnect the 4 connectors.
      GTY862723Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Bolt
      Connector
    2. Remove the bolt.
    3. Disengage the 4 clamps to remove the clutch control solenoid wire.
  3. REMOVE WIRE HARNESS CLAMP BRACKET 
    1. Remove the 3 bolts and 3 wire harness clamp brackets from the rear differential carrier assembly.
      GTY849668Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disengage the clamp to disconnect the wire harness.
      NOTE:

      Do not damage the wire harness.

  4. REMOVE TRANSMISSION REVOLUTION SENSOR 
    1. Remove the bolt and transmission revolution sensor from the rear differential carrier assembly.
      GTY849669Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the O-ring.
  5. REMOVE TEMPERATURE SENSOR 

    See step  2

  6. REMOVE CLUTCH CONTROL SOLENOID WIRE 
    1. Cut the clutch control solenoid wire as shown in the illustration.
      GTY868006Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Cut Area
      Bolt
      Connector
    2. Disconnect the connector.
    3. Remove the bolt and wire harness clamp bracket.
    4. Disengage the clamp to remove the wire harness clamp bracket.
      GTY918469Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. Disconnect the grommet.
      GTY876915Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Grommet
  7. REMOVE REAR DIFFERENTIAL BREATHER PLUG 
    1. Using a chisel and a hammer, lift the rear differential breather plug slightly.
      GTY849671Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:

      Do not damage the contact surface.

    2. Using a screwdriver, remove the rear differential breather plug.
  8. REMOVE REAR DIFFERENTIAL CARRIER COVER PLUG 
    1. GTY849672Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Using an 8 mm hexagon socket wrench, remove the rear differential carrier cover plug.

  9. REMOVE REAR DIFFERENTIAL FILLER PLUG 
    1. GTY849670Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Using a 10 mm hexagon socket wrench, remove the rear differential filler plug and gasket.

  10. REMOVE ELECTRO MAGNETIC CONTROL COUPLING SUB-ASSEMBLY 
    1. Remove the 4 bolts.
      GTY943891Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Using a brass bar and a hammer, lightly tap the electro magnetic control coupling sub-assembly to remove it from the rear differential carrier assembly.
      NOTE:
      • Set the brass bar on the ribbed part of the electro magnetic control coupling sub-assembly.
      • Do not damage the contact surface.

      HINT: 

      Temporarily install 2 bolts by approximately 5 or 6 threads to prevent the electro magnetic control coupling sub-assembly from falling.

    3. Disconnect the connector.
      GTY918465Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Remove the O-ring.
  11. INSPECT RUNOUT OF ELECTRO MAGNETIC CONTROL COUPLING SUB-ASSEMBLY 
    1. GTY940782Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Vertical Runout
      *b Lateral Runout
      *c 45.5 mm (1.79 in.)

      Using a dial indicator, measure the runout of the electro magnetic control coupling sub-assembly vertical runout and lateral runout.

      Maximum Runout

      Item Specified Condition
      Vertical runout 0.070 mm (0.00276 in.)
      Lateral runout 0.060 mm (0.00236 in.)
      NOTE:

      Measure the runout of the electro magnetic control coupling sub-assembly horizontally at a position 45.5 mm (1.79 in.) away from the electro magnetic control coupling sub-assembly.

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

  12. REMOVE STUD BOLT 
    1. Install 2 service nuts to the stud bolt.

      Recommended Service Nut

      Thread Diameter 

      10 mm (0.394 in.)

      Thread Pitch 

      1.0 mm (0.0394 in.)

    2. Turn the lower nut and remove the other 3 stud bolts in the same way.
      GTY858697Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Upper Nut
      *b Lower Nut
      *c Turn
      *d Hold
      NOTE:

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

      HINT: 

      Lock the lower nut using the upper nut.

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

  13. REMOVE REAR DIFFERENTIAL DUST DEFLECTOR (for Front Side) 
    1. Using a screwdriver, partially separate the rear differential dust deflector.
      GTY898871Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Protective Tape
      NOTE:
      • Separate the rear differential dust deflector to the extent the claws of SST can be inserted.
      • Do not damage the end surface of the electro magnetic control coupling sub-assembly.

      HINT: 

      Tape the screwdriver tip before use.

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

    2. Using SST, remove the rear differential dust deflector as shown in the illustration.
      • SST: 09950-40011 
        1. 09951-04020
        2. 09952-04010
        3. 09953-04030
        4. 09954-04010
        5. 09955-04061
        6. 09957-04010
        7. 09958-04011
      GTY938970Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Turn
      *b Hold
      NOTE:

      Before using the SST center bolt (09953-04030), apply grease to its threads and tip.

  14. REMOVE TRANSMISSION COUPLING DUST SEAL 

    See step  7 [12/2019 - 10/2022], or see step  7 [10/2022 - 11/2023], or see step  7 [11/2023 - ]

  15. REMOVE CONICAL SPRING WASHER 
    1. Remove the transmission coupling spacer and conical spring washer from the rear differential carrier assembly.
      GTY880965Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Transmission Coupling Spacer
      *2 Conical Spring Washer
  16. REMOVE REAR DIFFERENTIAL CARRIER OIL SEAL 

    See step  8 [12/2019 - 10/2022], or see step  8 [10/2022 - 11/2023], or see step  8 [11/2023 - ]

  17. REMOVE REAR DRIVE SHAFT OIL SEAL LH 
    1. Using SST, remove the rear drive shaft oil seal LH from the rear differential carrier assembly.
      • SST: 09308-00010 
      GTY892642Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Rear Drive Shaft Oil Seal LH
      NOTE:

      Do not damage the rear differential carrier assembly.

  18. REMOVE REAR DRIVE SHAFT OIL SEAL RH 

    HINT: 

    Use the same procedure as for the LH side.

  19. REMOVE REAR DIFFERENTIAL DUST DEFLECTOR (for LH Side) 
    1. Using a brass bar and a hammer, remove the rear differential dust deflector from the rear differential carrier assembly.
      GTY849642Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  20. REMOVE REAR DIFFERENTIAL DUST DEFLECTOR (for RH Side) 

    HINT: 

    Use the same procedure as for the LH side.