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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 Vectoring AWD) >> Installation [12/2019 - ] >> Procedure

Installation [12/2019 - ]: Procedure

  1. INSTALL REAR DIFFERENTIAL DYNAMIC DAMPER 
    1. Install the rear differential dynamic damper to the rear No. 2 differential support with a new bolt.

      Torque: 12 N.m (122 kgf/cm, 9 ft.lbf) 

  2. TEMPORARILY INSTALL REAR NO. 2 DIFFERENTIAL SUPPORT 
    1. Temporarily install the rear No. 2 differential support to the torque vectoring differential carrier assembly with the 2 bolts and 2 nuts.
      NOTE:
      • Reuse the removed bolts and nuts.
      • Be sure to install the rear No. 2 differential support facing the direction shown in the illustration.

      HINT: 

      The nuts have tabs to prevent them from rotating.

      GTY943833Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Install the 2 rear upper differential mount stoppers to the rear No. 2 differential support.
  3. INSTALL DIFFERENTIAL SUPPORT 
    1. Install the differential support to the torque vectoring differential carrier assembly with 3 new bolts.
      GTY894906Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Torque: 120 N.m (1224 kgf/cm, 89 ft.lbf) 

      HINT: 

      Tighten the bolt (A) shown in the illustration first.

  4. INSTALL REAR NO. 2 DIFFERENTIAL DYNAMIC DAMPER 
    1. Install the rear No. 2 differential dynamic damper and 2 rear upper differential mount stoppers to the differential support with 2 new bolts.

      Torque: 12 N.m (122 kgf/cm, 9 ft.lbf) 

  5. INSTALL TORQUE VECTORING DIFFERENTIAL CARRIER ASSEMBLY 
    NOTE:
    • Do not damage the contact surface when installing the torque vectoring differential carrier assembly.
    • Securely support the torque vectoring differential carrier assembly while performing this step to avoid excessively tilting or dropping the torque vectoring differential carrier assembly.
    • Install the bolts and nuts with the torque vectoring differential carrier assembly secured.
    1. Support the torque vectoring differential carrier assembly with a transmission jack using 2 attachments or equivalent tools as shown in the illustration.
    2. Temporarily install the torque vectoring differential carrier assembly to the rear suspension member sub-assembly with the 2 rear lower differential mount stoppers, 2 new bolts (A), 2 new bolts (B) and 2 new nuts.
      GTY935337Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Attachment - -
      Attachment Installation Position - -
    3. Tighten the 2 bolts (A).

      Torque: 130 N.m (1326 kgf/cm, 96 ft.lbf) 

      NOTE:

      Do not tighten the bolts with the inner cylinder or rear No. 1 differential mount cushion tilted.

    4. Tighten the 2 bolts (B).

      Torque: 80 N.m (816 kgf/cm, 59 ft.lbf) 

      NOTE:

      Do not tighten the bolts with the inner cylinder or rear differential mount cushion tilted.

    5. Engage the clamp to install the frame wire.
    6. Connect the 2 connectors and breather tube.
  6. INSTALL REAR DIFFERENTIAL SUPPORT 
    1. GTY918214Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Remove the 2 bolts and 2 nuts.

    2. Temporarily install the rear differential support to the torque vectoring differential carrier assembly with 2 new bolts (A) and 2 new nuts.
      GTY847948Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:

      Be sure to install the tabs of each nut to the positions (C) shown in the illustration.

      HINT: 

      The nuts have tabs to prevent them from rotating.

    3. Temporarily install 2 new bolts (B).
    4. Tighten the 4 bolts.

      Bolt A 

      Torque: 82 N.m (836 kgf/cm, 60 ft.lbf) 

      Bolt B 

      Torque: 38.5 N.m (393 kgf/cm, 28 ft.lbf) 

  7. INSTALL REAR STABILIZER BAR 

    Refer to PROCEDURE - Step 4

  8. INSTALL REAR DRIVE SHAFT ASSEMBLY 
    1. Install the rear drive shaft assembly LH and RH.

      Refer to INSTALLATION [12/2019 - 10/2022] , or refer to INSTALLATION [10/2022 - ]

  9. INSTALL PROPELLER WITH CENTER BEARING SHAFT ASSEMBLY 

    Refer to INSTALLATION [12/2019 - 10/2022] , or refer to INSTALLATION [10/2022 - ]

  10. ADD DIFFERENTIAL OIL 

    Refer to PROCEDURE - Step 4

  11. INSPECT FOR DIFFERENTIAL OIL LEAK 
  12. DYNAMIC TORQUE VECTORING AWD SYSTEM CALIBRATION 

    Refer to CALIBRATION [12/2019 - ]

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