Rear Axle Hub Installation

Suspension & Axle. Lexus Gs430, Gs300. Uzs190 Grs190
Axle. Lexus Gs430, Gs300. Uzs190 Grs190

  1. INSTALL REAR AXLE HUB AND BEARING ASSEMBLY

  2. INSTALL REAR WHEEL BEARING DUST DEFLECTOR NO.2

  3. INSTALL REAR AXLE ASSEMBLY

  4. INSTALL UPPER CONTROL ARM ASSEMBLY REAR NO.2

  5. TEMPORARILY TIGHTEN UPPER CONTROL ARM ASSEMBLY REAR NO.1

  6. TEMPORARILY TIGHTEN REAR SUSPENSION ARM ASSEMBLY NO.1

  7. TEMPORARILY TIGHTEN REAR SUSPENSION ARM ASSEMBLY NO.2

  8. INSTALL TOE CONTROL LINK SUB-ASSEMBLY

  9. INSTALL REAR STABILIZER LINK ASSEMBLY

  10. INSTALL PARKING BRAKE ANCHOR BLOCK

  11. APPLY HIGH TEMPERATURE GREASE

  12. INSTALL PARKING BRAKE SHOE LEVER

  13. INSTALL PARKING BRAKE SHOE ASSEMBLY NO.2

  14. INSTALL PARKING BRAKE SHOE ASSEMBLY NO.1

  15. INSTALL PARKING BRAKE SHOE ADJUSTING SCREW SET

  16. INSTALL PARKING BRAKE SHOE RETURN SPRING NO.1

  17. INSTALL PARKING BRAKE SHOE RETURN SPRING NO.2

  18. CHECK PARKING BRAKE INSTALLATION

  19. INSTALL SPEED SENSOR REAR

  20. INSTALL REAR AXLE SHAFT NUT

  21. INSPECT REAR AXLE HUB BEARING LOOSENESS

  22. INSPECT REAR AXLE HUB RUNOUT

  23. INSTALL REAR DISC

  24. ADJUST PARKING BRAKE SHOE CLEARANCE

  25. INSTALL REAR DISC BRAKE CALIPER ASSEMBLY

  26. INSTALL REAR AXLE SHAFT NUT

  27. STABILIZE SUSPENSION

  28. FULLY TIGHTEN UPPER CONTROL ARM ASSEMBLY REAR NO.1

  29. FULLY TIGHTEN REAR SUSPENSION ARM ASSEMBLY NO.1

  30. FULLY TIGHTEN REAR SUSPENSION ARM ASSEMBLY NO.2

  31. INSTALL REAR WHEEL

  32. INSPECT PARKING BRAKE PEDAL TRAVEL

  33. ADJUST PARKING BRAKE PEDAL TRAVEL

  34. INSPECT AND ADJUST REAR WHEEL ALIGNMENT

  35. CHECK ABS SPEED SENSOR SIGNAL

Rear Axle Hub -- Installation



1. INSTALL REAR AXLE HUB AND BEARING ASSEMBLY
  1. Hold the axle hub and bearing assembly in a vise between aluminium plates.

    NOTICE:
    Do not overtighten the vise.


    Lexus Gs430, Gs300. Uzs190 Grs190.Axle.Axle System.Rear Axle Hub  Installation
  1. Install the axle hub and bearing assembly to the rear axle carrier sub-assembly with the 4 bolts.

    Torque:
    70 N*m{714 kgf*cm, 52 ft.*lbf}


2. INSTALL REAR WHEEL BEARING DUST DEFLECTOR NO.2


    Lexus Gs430, Gs300. Uzs190 Grs190.Axle.Axle System.Rear Axle Hub  Installation
  1. Using SST and a hammer, install the bearing dust deflector No.2 to the rear axle carrier sub-assembly.

    SST
    09951-01000
    09950-70010(09951-07150)
    HINT:
    Align the hole for the speed sensor in the bearing dust deflector No.2 with the rear axle carrier sub-assembly.


3. INSTALL REAR AXLE ASSEMBLY
  1. Install the rear drive shaft assembly and rear axle assembly.



4. INSTALL UPPER CONTROL ARM ASSEMBLY REAR NO.2


    Lexus Gs430, Gs300. Uzs190 Grs190.Axle.Axle System.Rear Axle Hub  Installation
  1. Install the upper control arm assembly rear No.2 to the rear axle carrier sub-assembly with a new nut.

    Torque:
    70 N*m{714 kgf*cm, 52 ft.*lbf}


5. TEMPORARILY TIGHTEN UPPER CONTROL ARM ASSEMBLY REAR NO.1


    Lexus Gs430, Gs300. Uzs190 Grs190.Axle.Axle System.Rear Axle Hub  Installation
  1. Temporarily tighten the upper control arm assembly rear No.1 to the rear axle carrier sub-assembly with the bolt, washer and nut.

    HINT:
    Install the bolt from the rear side of the vehicle and lightly tighten the bolt.


6. TEMPORARILY TIGHTEN REAR SUSPENSION ARM ASSEMBLY NO.1


    Lexus Gs430, Gs300. Uzs190 Grs190.Axle.Axle System.Rear Axle Hub  Installation
  1. Temporarily tighten the rear suspension arm assembly No.1 to the rear axle carrier sub-assembly with the bolt and nut.

    HINT:
    Install the bolt from the rear side of the vehicle and lightly tighten the bolt.


7. TEMPORARILY TIGHTEN REAR SUSPENSION ARM ASSEMBLY NO.2


    Lexus Gs430, Gs300. Uzs190 Grs190.Axle.Axle System.Rear Axle Hub  Installation
  1. Temporarily tighten the rear suspension arm assembly No.2 to the rear axle carrier sub-assembly with the bolt and nut.

    HINT:
    Install the bolt from the rear side of the vehicle and lightly tighten the bolt.


8. INSTALL TOE CONTROL LINK SUB-ASSEMBLY


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Install the toe control link sub-assembly to the rear axle carrier sub-assembly with a new nut.

    Torque:
    70 N*m{714 kgf*cm, 52 ft.*lbf}


9. INSTALL REAR STABILIZER LINK ASSEMBLY


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Install the stabilizer link assembly and the load sensing valve sensor bracket to the rear suspension arm assembly No.2 with the bolt and nut.

    Torque:
    27 N*m{275 kgf*cm, 20 ft.*lbf}


10. INSTALL PARKING BRAKE ANCHOR BLOCK


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Install the parking brake anchor block sub-assembly to the rear axle carrier sub-assembly with the 2 nuts.

    Torque:
    76 N*m{775 kgf*cm, 56 ft.*lbf}


11. APPLY HIGH TEMPERATURE GREASE
  1. Apply a thin layer of high temperature grease to the area where the parking brake plate contacts the parking brake shoe (Click here).



12. INSTALL PARKING BRAKE SHOE LEVER


    Lexus Gs430, Gs300. Uzs190 Grs190.Axle.Axle System.Rear Axle Hub  Installation
  1. Apply a thin layer of high temperature grease to the area where the parking brake shoe lever contacts the parking brake anchor block.

  1. Install the parking brake shoe lever to the parking brake cable assembly.

    NOTICE:
    Take care to install the correct parking brake shoe lever because the direction of the pin is different between left and right.


13. INSTALL PARKING BRAKE SHOE ASSEMBLY NO.2


    Lexus Gs430, Gs300. Uzs190 Grs190.Axle.Axle System.Rear Axle Hub  Installation
  1. Using SST, install the parking brake No.2 shoe assembly with the shoe hold down spring No.1 cup, compression No.1 spring and shoe hold down spring No.1 pin.

    SST
    09718-00010
    HINT:
    Use the service hole to retain the shoe hold down spring No.1 pin with your finger.


14. INSTALL PARKING BRAKE SHOE ASSEMBLY NO.1


    Lexus Gs430, Gs300. Uzs190 Grs190.Axle.Axle System.Rear Axle Hub  Installation
  1. Using SST, install the parking brake No.1 shoe assembly with the shoe hold down spring No.1 cup, compression No.1 spring and shoe hold down spring No.1 pin.

    SST
    09718-00010


15. INSTALL PARKING BRAKE SHOE ADJUSTING SCREW SET


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Apply high temperature grease to the thread and all joining areas of the parking brake shoe adjusting screw set.



    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Install the parking brake shoe adjusting screw set.



16. INSTALL PARKING BRAKE SHOE RETURN SPRING NO.1


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Install the parking brake shoe return No.1 spring.



17. INSTALL PARKING BRAKE SHOE RETURN SPRING NO.2


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Install the parking brake shoe return No.2 spring.



18. CHECK PARKING BRAKE INSTALLATION


  1. Make sure that all the parts are installed properly.
    If necessary, reinstall properly.


    Lexus Gs430, Gs300. Uzs190 Grs190.Axle.Axle System.Rear Axle Hub  Installation



19. INSTALL SPEED SENSOR REAR


    Lexus Gs430, Gs300. Uzs190 Grs190.Axle.Axle System.Rear Axle Hub  Installation
  1. Install the speed sensor to the rear axle carrier with the 2 bolts.

    Torque:
    Bolt (A):
    8.5 N*m{87 kgf*cm, 75 in.*lbf}
    Bolt (B):
    6.0 N*m{61 kgf*cm, 53 in.*lbf}
    NOTICE:
    1. Be careful not to damage the speed sensor.
    2. Prevent foreign matter from adhering to the speed sensor.
    3. Do not twist the sensor wire when installing the speed sensor.


20. INSTALL REAR AXLE SHAFT NUT
  1. Install a new rear axle shaft nut.

    Torque:
    290 N*m{2,957 kgf*cm, 214 ft.*lbf}
    HINT:
    Stake the nut after inspecting for looseness and runout in the following steps.


21. INSPECT REAR AXLE HUB BEARING LOOSENESS


    Lexus Gs430, Gs300. Uzs190 Grs190.Axle.Axle System.Rear Axle Hub  Installation
  1. Using a dial indicator, check for looseness near the center of the axle hub.

    Maximum:
    0.05 mm (0.0020 in.)
    NOTICE:
    Ensure that the dial indicator is set at right angles to the measurement surface.
    If looseness exceeds the maximum, replace the axle hub assembly.


22. INSPECT REAR AXLE HUB RUNOUT


    Lexus Gs430, Gs300. Uzs190 Grs190.Axle.Axle System.Rear Axle Hub  Installation
  1. Using a dial indicator, check for runout on surface of the axle hub outside the hub bolt.

    Maximum:
    0.05 mm (0.0020 in.)
    NOTICE:
    Ensure that the dial indicator is set at right angles to the measurement surface.
    If runout exceeds the maximum, replace the axle hub assembly.


23. INSTALL REAR DISC
  1. Align the matchmarks on the rear disc and rear axle hub.



24. ADJUST PARKING BRAKE SHOE CLEARANCE
  1. Temporarily install the hub nuts.

  1. Remove the shoe adjusting hole plug.

  1. Turn the shoe adjuster and expand the shoe until the disc locks.



    Lexus Gs430, Gs300. Uzs190 Grs190.Axle.Axle System.Rear Axle Hub  Installation
  1. Turn and contract the shoe adjuster until the disc can rotate smoothly.

    Standard:
    Return 7 notches
  1. Check that there is no brake drag against the shoe.

  1. Install the shoe adjusting hole plug.

  1. Remove the hub nuts.



25. INSTALL REAR DISC BRAKE CALIPER ASSEMBLY


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Install the rear disc brake caliper assembly and caliper plates No.1 with the 2 bolts.

    Torque:
    54 N*m{551 kgf*cm, 40 ft.*lbf}
    NOTICE:
    1. Do not twist the rear brake hose when installing the rear disc brake caliper.
    2. Make sure that there are no foreign objects or damage to the threads.
    3. Do not overtighten the bolts because the hub carrier is made of aluminum and may be damaged.


26. INSTALL REAR AXLE SHAFT NUT


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Using a chisel and a hammer, stake the axle shaft nut.



27. STABILIZE SUSPENSION


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Jack up the axle carrier, with a wooden block placed between the jack and axle carrier, to apply load to the suspension so that the rear drive shaft assembly becomes level.



28. FULLY TIGHTEN UPPER CONTROL ARM ASSEMBLY REAR NO.1


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Fully tighten the upper control arm assembly rear No.1 with the nut.

    Torque:
    161 N*m{1,642 kgf*cm, 119 ft.*lbf}


29. FULLY TIGHTEN REAR SUSPENSION ARM ASSEMBLY NO.1


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Fully tighten the rear suspension arm assembly No.1 with the bolt and nut.

    Torque:
    95 N*m{969 kgf*cm, 70 ft.*lbf}
    NOTICE:
    Turn the bolt while holding the nut.


30. FULLY TIGHTEN REAR SUSPENSION ARM ASSEMBLY NO.2


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Fully tighten the rear suspension arm assembly No.2 with the bolt and nut.

    Torque:
    161 N*m{1,642 kgf*cm, 119 ft.*lbf}
    NOTICE:
    Turn the bolt while holding the nut.


31. INSTALL REAR WHEEL
Torque:
103 N*m{1,050 kgf*cm, 76 ft.*lbf}


32. INSPECT PARKING BRAKE PEDAL TRAVEL
  1. Fully depress the parking brake pedal and release it to engage the parking brake.

  1. Depress the pedal to the floor again, and release it to disengage the parking brake.



    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Slowly depress the parking brake pedal to the floor, and count the number of clicks.

    Parking brake pedal travel:
    7 to 9 notches at 300N (31kgf, 67.5lbf)


33. ADJUST PARKING BRAKE PEDAL TRAVEL
  1. Depress the parking brake pedal. Hold the wire adjusting No.1 nut using a wrench and loosen the lock nut.

  1. Release the parking brake pedal.



    Lexus Gs430, Gs300. Uzs190 Grs190.Axle.Axle System.Rear Axle Hub  Installation
  1. Turn the wire adjusting No.1 nut until the parking brake pedal travel meets the above specification.

  1. Hold the wire adjusting No.1 nut using a wrench or equivalent tool and tighten the lock nut.

    Torque:
    6.0 N*m{61 kgf*cm, 53 in.*lbf}
  1. Count the number of clicks after depressing and releasing the parking brake pedal 3 or 4 times.

  1. Check whether the parking brake drags or not.

  1. When operating the parking brake pedal, check that the parking brake indicator light comes on.



34. INSPECT AND ADJUST REAR WHEEL ALIGNMENT
(Click here)


35. CHECK ABS SPEED SENSOR SIGNAL
(w/ ECB: Click here)
(w/o ECB: Click here)