DIFFERENTIAL OIL REPLACEMENT

CAUTION / NOTICE / HINT

Tech Tips

There are 2 front differential filler plugs (LH and RH). Use whichever is easiest to perform the procedure.

PROCEDURE


  1. DRAIN DIFFERENTIAL OIL


    1. for front differential RH side:


      1. Stop the vehicle on a level surface.

      2. A01WBDC

        Remove the differential filler plug and gasket.

      3. Remove the drain plug and gasket, and drain the oil.

      4. Install a new gasket and the drain plug.

        Torque:
        64.7 N*m  { 660 kgf*cm, 48 ft.*lbf }

    2. for front differential LH side:


      1. Stop the vehicle on a level surface.

      2. A01W9RMC04
        *1 10 mm Straight Hexagon Wrench
        *2 10 mm Union Nut Wrench
        *3 Socket Adaptor

        Using SST and a 10 mm straight hexagon wrench, 10 mm union nut wrench and socket adaptor, remove the differential filler plug and gasket.

        SST
        09961-00950

      3. Remove the drain plug and gasket, and drain the oil.

      4. Install a new gasket and the drain plug.

        Torque:
        64.7 N*m  { 660 kgf*cm, 48 ft.*lbf }

    3. for rear differential:


      1. Stop the vehicle on a level surface.

      2. Remove the rear axle housing filler plug and gasket.

      3. Remove the rear axle housing drain plug and gasket, and drain the oil.

      4. Install a new gasket and the rear axle housing drain plug.

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

  2. ADD DIFFERENTIAL OIL

    Tech Tips

    Check the shape of the companion flange and if there are serration bolts and a connector to determine whether the vehicle has a BD20 or BD22 differential.


    • BD20:

      Companion flange is round and there are no serration bolts and no connector.

    • BD22:

      Companion flange has an irregular shape and there are serration bolts.

    • BD22:

      Connectors are installed when the vehicle is equipped with a differential lock.

    A01WB5AC01
    *a for BD20 (w/o Differential Lock) *b for BD22 (w/ Differential Lock)
    *c for BD22 (w/o Differential Lock) *d for DANA Made (w/ Differential Lock)
    *e for DANA Made (w/o Differential Lock) - -

    1. A01WAQMC22
      *a 0 to 5 mm

      Add differential oil so that the oil level is within 0 to 5 mm (0 to 0.196 in.) from the bottom lip of the differential filler plug hole.

      Note


      • After changing the oil, drive the vehicle, and then check the oil level again.

      • Too much or too little oil will lead to differential problems.

      If necessary, fill the differential carrier with hypoid gear oil.

      Recommended Viscosity
      Item Viscosity
      Front Differential (w/ A.D.D.) SAE 75W-85
      Front Differential (w/o A.D.D.)
      Rear Differential SAE 75W-85
      Differential Oil Type
      Item Oil type
      Front Differential (w/ A.D.D.) Toyota Genuine Differential gear oil LT 75W-85 GL-5 or equivalent
      Front Differential (w/o A.D.D.)
      Rear Differential
      Standard Front Differential Oil Capacity
      Item Capacity
      w/ A.D.D. 1.55 to 1.65 liters (1.64 to 1.74 US qts., 1.37 to 1.45 Imp. qts.)
      w/o A.D.D. 1.40 to 1.50 liters (1.48 to 1.58 US qts., 1.24 to 1.32 Imp. qts.)
      Standard Rear Differential Oil Capacity
      Item Capacity

      BD20

      (w/o Differential Lock)

      		 2.70 to 2.80 liters (2.86 to 2.95 US qts., 2.38 to 2.46 Imp. qts.)

      BD22

      (w/ Differential Lock)

      		 3.55 to 3.65 liters (3.76 to 3.85 US qts., 3.13 to 3.21 Imp. qts.)

      BD22

      (w/o Differential Lock)

      		 3.60 to 3.70 liters (3.81 to 3.91 US qts., 3.17 to 3.25 Imp. qts.)

      for DANA Made

      (w/ Differential Lock)

      		 3.55 to 3.65 liters (3.76 to 3.85 US qts., 3.13 to 3.21 Imp. qts.)

      for DANA Made

      (w/o Differential Lock)

      		 3.70 to 3.80 liters (3.92 to 4.01 US qts., 3.26 to 3.34 Imp. qts.)

    2. Check for oil leakage when the oil level is low.

    3. A01WBDC

      for front differential RH side:


      1. Install a new gasket and the differential filler plug.

        Torque:
        39.2 N*m  { 400 kgf*cm, 29 ft.*lbf }
    4. A01W981C03
      *1 10 mm Straight Hexagon Wrench
      *2 10 mm Union Nut Wrench
      *3 Socket Adaptor

      for front differential LH side:


      1. Using SST and a 10 mm straight hexagon wrench, 10 mm union nut wrench and socket adaptor, install a new gasket and the differential filler plug.

        SST
        09961-00950
        Torque:
        39.2 N*m  { 400 kgf*cm, 29 ft.*lbf }

        Note


        • Make sure all the tools are connected in a straight line.

        • Use the formula to calculate special torque values for situations where a union nut wrench is combined with a torque wrench.

        Formula
        T' = T x L3 / (L1 + L2 + L3)
        - T' = Spec. value of torque wrench
        - T = Value of specified tightening torque
        - L1 = Length of union nut wrench
        - L2 = Length of SST
        - L3 = Length of torque wrench

    5. for rear differential:


      1. Install a new gasket and the rear axle housing filler plug.

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