DIFFERENTIAL SYSTEM


  1. OUTLINE


    1. Front Differential


      1. An SD20BD or SD20CD type front differential is used.

      2. An Automatic Disconnecting Differential (A.D.D.) actuator (differential motor actuator assembly) is installed to the SD20BD or SD20CD type front differential. The A.D.D. actuator (differential motor actuator assembly) connects and disconnects the driveline between the transfer and the front wheels. For details, see the TRANSFER / 4WD / AWD section.

      3. An oil temperature warning system is provided. The temperature sensor is positioned on the front differential to monitor the oil temperature of the front differential. For details, see the TRANSFER / 4WD / AWD section.

        Figure 1. SD20BD or SD20CD Type Front Differential (with A.D.D. Actuator)

        B002NHD

    2. Rear Differential


      1. A BD20E, BD22A, BD22B, BD22AN or BD22BN type rear differential is used.

      2. The BD22AN or BD22BN type rear differential has a built-in electronic differential lock mechanism.

        Figure 2. BD20E Rear Differential

        B002NLC

        Figure 3. BD22A or BD22B Rear Differential

        B002MUE

        Figure 4. BD22AN or BD22BN Rear Differential (with Electronic Differential Lock Mechanism)

        B002NAP

  2. SPECIFICATION


    1. Front Differential


      1. Models with 2TR-FE Engine

        Transmission Type R151F AC60F
        Differential Gear Ratio 4.555 ←
        Ring Gear Size 205.0 mm (8.0 in.) ←
        Ring Gear No. of Gear Teeth 41 ←
        Drive Pinion No. of Gear Teeth 9 ←
        No. of Differential Pinion 2 ←
        Oil Capacity 1.60 Liters (1.69 US qts, 1.41 Imp. qts) ←
        Oil Type Toyota Genuine Differential Gear Oil LT or Equivalent ←
        Oil Viscosity SAE 75W-85 ←
        Oil Grade API GL-5 ←

      2. Models with 1GR-FE Engine

        Transmission Type AC60F
        Differential Gear Ratio 3.909
        Ring Gear Size 205.0 mm (8.0 in.)
        Ring Gear No. of Gear Teeth 43
        Drive Pinion No. of Gear Teeth 11
        No. of Differential Pinion 2
        Oil Capacity 1.60 Liters (1.69 US qts, 1.41 Imp. qts)
        Oil Type Toyota Genuine Differential Gear Oil LT or Equivalent
        Oil Viscosity SAE 75W-85
        Oil Grade API GL-5

      3. Models with 1GD-FTV Engine

        Transmission Type RC61F AC60F
        Differential Gear Ratio 3.583 3.909
        Ring Gear Size 205.0 mm (8.0 in.) ←
        Ring Gear No. of Gear Teeth 43 ←
        Drive Pinion No. of Gear Teeth 12 11
        No. of Differential Pinion 2 ←
        Oil Capacity 1.60 Liters (1.69 US qts, 1.41 Imp. qts) ←
        Oil Type Toyota Genuine Differential Gear Oi lLT or Equivalent ←
        Oil Viscosity SAE 75W-85 ←
        Oil Grade API GL-5 ←

      4. Models with 2GD-FTV Engine

        Transmission Type RC60F AC60F
        Differential Gear Ratio 3.583 4.100
        Ring Gear Size 205.0 mm (8.0 in.) ←
        Ring Gear No. of Gear Teeth 43 41
        Drive Pinion No. of Gear Teeth 12 10
        No. of Differential Pinion 2 ←
        Oil Capacity 1.60 Liters (1.69 US qts, 1.41 Imp. qts) ←
        Oil Type Toyota Genuine Differential Gear Oil LT or Equivalent ←
        Oil Viscosity SAE 75W-85 ←
        Oil Grade API GL-5 ←

      5. Models with 5L-E Engine

        Transmission Type R151F
        Differential Gear Ratio 4.555
        Ring Gear Size 205.0 mm (8.0 in.)
        Ring Gear No. of Gear Teeth 41
        Drive Pinion No. of Gear Teeth 9
        No. of Differential Pinion 2
        Oil Capacity 1.60 Liters (1.69 US qts, 1.41 Imp. qts)
        Oil Type Toyota Genuine Differential Gear Oil LT or Equivalent
        Oil Viscosity SAE 75W-85
        Oil Grade API GL-5

    2. Rear Differential


      1. Models with 2TR-FE Engine

        Differential Type BD22A BD22AN
        Transmission Type R151, R151F ←
        Differential Gear Ratio 4.555 ←
        Ring Gear Size 225.0 mm (8.8 in.) ←
        Ring Gear No. of Gear Teeth 41 ←
        Drive Pinion No. of Gear Teeth 9 ←
        No. of Differential Pinion 2 4
        Oil Capacity 3.50 Liters (3.70 US qts, 3.10 Imp. qts) ←
        Oil Type Toyota Genuine Differential Gear Oil LT or Equivalent ←
        Oil Viscosity SAE 75W-85 ←
        Oil Grade API GL-5 ←
        Differential Type BD20E (Models for Philippines)
        Transmission Type AC60E
        Differential Gear Ratio 4.555
        Ring Gear Size 205.0 mm (8.0 in.)
        Ring Gear No. of Gear Teeth 41
        Drive Pinion No. of Gear Teeth 9
        No. of Differential Pinion 2
        Oil Capacity 2.75 Liters (2.91 US qts, 2.42 Imp. qts)
        Oil Type Toyota Genuine Differential Gear Oil LT or Equivalent
        Oil Viscosity SAE 75W-85
        Oil Grade API GL-5
        Differential Type BD22A, BD22B
        Transmission Type AC60E, AC60F
        Differential Gear Ratio 4.555
        Ring Gear Size 225.0 mm (8.8 in.)
        Ring Gear No. of Gear Teeth 41
        Drive Pinion No. of Gear Teeth 9
        No. of Differential Pinion 2
        Oil Capacity

        3.50 Liters (3.70 US qts, 3.10 Imp. qts)*1

        3.75 Liters (3.96 US qts, 3.30 Imp. qts)*2
        Oil Type Toyota Genuine Differential Gear Oil LT or Equivalent
        Oil Viscosity SAE 75W-85
        Oil Grade API GL-5

        • *1: Models with BD22A rear differential

        • *2: Models with BD22B rear differential

        Differential Type BD22AN, BD22BN
        Transmission Type AC60E, AC60F
        Differential Gear Ratio 4.555
        Ring Gear Size 225.0 mm (8.8 in.)
        Ring Gear No. of Gear Teeth 41
        Drive Pinion No. of Gear Teeth 9
        No. of Differential Pinion 4
        Oil Capacity 3.50 Liters (3.70 US qts, 3.10 Imp. qts)
        Oil Type Toyota Genuine Differential Gear Oil LT or Equivalent
        Oil Viscosity SAE 75W-85
        Oil Grade API GL-5

      2. Models with 1GR-FE Engine

        Differential Type BD22A BD22AN, BD22BN
        Transmission Type AC60E, AC60F ←
        Differential Gear Ratio 3.909 ←
        Ring Gear Size 225.0 mm (8.8 in.) ←
        Ring Gear No. of Gear Teeth 43 ←
        Drive Pinion No. of Gear Teeth 11 ←
        No. of Differential Pinion 2 4
        Oil Capacity 3.50 Liters (3.70 US qts, 3.10 Imp. qts) ←
        Oil Type Toyota Genuine Differential Gear Oil LT or Equivalent ←
        Oil Viscosity SAE 75W-85 ←
        Oil Grade API GL-5 ←

      3. Models with 1GD-FTV Engine

        Differential Type BD22B BD22AN, BD22BN
        Transmission Type RC61F RC61, RC61F
        Differential Gear Ratio 3.583 ←
        Ring Gear Size 225.0 mm (8.8 in.) ←
        Ring Gear No. of Gear Teeth 43 ←
        Drive Pinion No. of Gear Teeth 12 ←
        No. of Differential Pinion 2 4
        Oil Capacity 3.75 Liters (3.96 US qts, 3.30 Imp. qts) 3.50 Liters (3.70 US qts, 3.10 Imp. qts)
        Oil Type Toyota Genuine Differential Gear Oil LT or Equivalent ←
        Oil Viscosity SAE 75W-85 ←
        Oil Grade API GL-5 ←
        Differential Type BD22A, BD22B BD22AN, BD22BN
        Transmission Type AC60F AC60E, AC60F
        Differential Gear Ratio 3.909 ←
        Ring Gear Size 225.0 mm (8.8 in.) ←
        Ring Gear No. of Gear Teeth 43 ←
        Drive Pinion No. of Gear Teeth 11 ←
        No. of Differential Pinion 2 4
        Oil Capacity

        3.50 Liters (3.70 US qts, 3.10 Imp. qts)*1

        3.75 Liters (3.96 US qts, 3.30 Imp. qts)*2

        		 ←
        Oil Type Toyota Genuine Differential Gear Oil LT or Equivalent ←
        Oil Viscosity SAE 75W-85 ←
        Oil Grade API GL-5 ←

        *1: Models with BD22A rear differential

        *2: Models with BD22B rear differential

      4. Models with 2GD-FTV Engine

        Differential Type BD22A BD22AN, BD22BN
        Transmission Type RC60 ←
        Differential Gear Ratio 3.583 ←
        Ring Gear Size 225.0 mm (8.8 in.) ←
        Ring Gear No. of Gear Teeth 43 ←
        Drive Pinion No. of Gear Teeth 12 ←
        No. of Differential Pinion 2 4
        Oil Capacity 3.50 Liters (3.70 US qts, 3.10 Imp. qts) ←
        Oil Type Toyota Genuine Differential Gear Oil LT or Equivalent ←
        Oil Viscosity SAE 75W-85 ←
        Oil Grade API GL-5 ←
        Differential Type BD22A BD22AN, BD22BN
        Transmission Type AC60E, AC60F ←
        Differential Gear Ratio 4.100 ←
        Ring Gear Size 225.0 mm (8.8 in.) ←
        Ring Gear No. of Gear Teeth 41 ←
        Drive Pinion No. of Gear Teeth 10 ←
        No. of Differential Pinion 2 4
        Oil Capacity 3.50 Liters (3.70 US qts, 3.10 Imp. qts) ←
        Oil Type Toyota Genuine Differential Gear Oil LT or Equivalent ←
        Oil Viscosity SAE 75W-85 ←
        Oil Grade API GL-5 ←

      5. Models with 5L-E Engine

        Differential Type BD22B BD22BN
        Transmission Type R151F ←
        Differential Gear Ratio 4.555 ←
        Ring Gear Size 225.0 mm (8.8 in.) ←
        Ring Gear No. of Gear Teeth 41 ←
        Drive Pinion No. of Gear Teeth 9 ←
        No. of Differential Pinion 2 4
        Oil Capacity 3.75 Liters (3.96 US qts, 3.30 Imp. qts) 3.50 Liters (3.7 US qts, 3.1 Imp. qts)
        Oil Type Toyota Genuine Differential Gear Oil LT or Equivalent ←
        Oil Viscosity SAE 75W-85 ←
        Oil Grade API GL-5 ←

  3. PRECAUTION


    1. The ABS, TRC and VSC functions in the brake control system stop while the rear differential lock system is operating.