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Home >> Lexus >> 2016 >> GS F >> Repair and Diagnosis >> Suspension >> Front Suspension >> Front Suspension - Service Information >> Front Shock Absorber >> Installation [09/2016 - ] >> Procedure

Installation [09/2016 - ]: Procedure

  1. INSTALL FRONT COIL SPRING 
    1. Secure SST in a vise.
      GTY488737Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      • SST: 09727-30022 
        1. 09727-00010
        2. 09727-00022
        3. 09727-00031
    2. Attach the hooks of each SST arm across the diameter of the coil spring.
      WARNING:
      • Make sure that the hooks are securely attached to the coil spring.
        GTY600271Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      • If a hook disengages from the coil spring, the coil spring may fly out, resulting in injury.
      • Make sure that the hooks of the upper and lower SST arms are attached to the coil spring so that the distance between the hooks is as large as possible.
        GTY596483Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      • If a hook disengages from the coil spring, the coil spring may fly out, resulting in injury.
      • Make sure that the arms of SST are parallel and the number of coils between the arms is the same on each side.
        GTY613077Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      • If a hook disengages from the coil spring, the coil spring may fly out, resulting in injury.
    3. Install the stopper pins to the hooks of SST.
      WARNING:
      • Make sure that the stopper pins are installed securely.
      • If a hook disengages from the coil spring, the coil spring may fly out, resulting in injury.
      GTY551008Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Using SST, compress the coil spring.
      WARNING:
      • If the coil spring starts to bow out while using SST, stop immediately and reattach SST correctly.
        GTY596481Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      • If a hook disengages from the coil spring, the coil spring may fly out, resulting in injury.
      • Do not compress the coil spring to the point where the coils touch each other.
        GTY596494Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      • If a hook disengages from the coil spring, the coil spring may fly out, resulting in injury.
      • Do not use an impact wrench.
        GTY596492Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      • If an impact wrench is used, the threads of SST may be damaged, or sudden compression of the coil spring may cause a hook to disengage and the coil spring to fly out, resulting in injury.
      • If a stopper pin touches the coil spring while using SST, remove the stopper pin and continue with the procedure.
        GTY613915Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      • If a stopper pin is removed, install SST (coil spring stopper belt) as shown in the illustration.
      • If a hook disengages from the coil spring, the coil spring may fly out, resulting in injury.
      • SST: 09727-00110 
    5. Install the front coil spring to the front shock absorber assembly.
      GTY511687Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    6. Install the front upper coil spring insulator to the front suspension support assembly as shown in the illustration.
      GTY515099Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Bolt
      *b Cutout
      NOTE:

      Align the bolt of the front suspension support assembly and the cutout of the front upper coil spring insulator.

    7. Install the front suspension support assembly to the front shock absorber assembly.
      NOTE:

      Match the shape of the front shock absorber assembly piston rod end to the shape of the front suspension support assembly.

      GTY659055Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Support Ring
    8. Temporarily tighten a new lock nut.
    9. Adjust the front suspension support assembly so that the bolts come to the positions as shown in the illustration, and remove SST from the front coil spring.
      NOTE:
      • Do not use an impact wrench. It will damage SST.
      • Make sure that the front suspension support assembly is aligned as shown in the illustration when removing SST.
      GTY650465Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *A LH Side
      *B RH Side
      *a 30° +/- 2°
      *b Identification Mark
      Front of the Vehicle
      Outside of the Vehicle
  2. TEMPORARILY TIGHTEN FRONT SHOCK ABSORBER WITH COIL SPRING 
    1. Install the front No. 3 spring support reinforcement and front shock absorber with coil spring (upper side) to the vehicle body with the 3 nuts.

      Torque: 67 N*m (683 kgf*cm, 49 ft.*lbf) 

    2. Temporarily tighten the front shock absorber with coil spring (lower side) to the front lower suspension arm assembly with the bolt and nut.
      NOTE:
      • Insert the bolt from the rear of the vehicle.
      • Because the nut has its own stopper, do not turn the nut. Tighten the bolt with the nut secured.

      HINT: 

      Fully tighten the bolt after stabilizing the suspension.

    3. Using a 17 mm deep socket wrench, fully tighten the lock nut.

      Torque: 27.5 N*m (280 kgf*cm, 20 ft.*lbf) 

      NOTE:
      • Perform this step only when the front shock absorber with coil spring has been disassembled.
      • Do not pinch the wire harness when tightening the lock nut with the deep socket wrench.
      • When inserting the wire harness and connector into the deep socket wrench, do not excessively bend the wire harness.
    4. Install the upper shock absorber cap with the 3 nuts.

      Torque: 19.6 N*m (200 kgf*cm, 

    5. Connect the connector.
    6. Engage the 4 claws and install the grommet to the upper shock absorber cap.
  3. INSTALL FRONT UPPER SUSPENSION ARM ASSEMBLY 
    1. Install the front upper suspension arm assembly to the steering knuckle with the nut.

      Torque: 87 N*m (887 kgf*cm, 64 ft.*lbf) 

      NOTE:

      Prevent oil from adhering to the threaded and tapered parts.

    2. Install a new clip.
      NOTE:

      Further tighten the nut up to 60° if the holes for the clip are not aligned.

  4. INSTALL FRONT STABILIZER LINK SUB-ASSEMBLY 

    See step  9 [10/2015 - 05/2018], or See step  9 [05/2018 - ]

  5. INSTALL FRONT SKID CONTROL SENSOR WIRE 
    1. Install the front skid control sensor wire to the steering knuckle, front shock absorber with coil spring and vehicle body with the 3 bolts.
      GTY495321Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Bolt (A) 

      Torque: 6.0 N*m (61 kgf*cm, 53 in.*lbf) 

      Bolt (B) 

      Torque: 8.5 N*m (87 kgf*cm, 75 in.*lbf) 

      NOTE:
      • Be careful not to deform the bracket of the front shock absorber with coil spring when installing the bolt.
      • Do not twist the front skid control sensor wire when installing it.
    2. Connect the front skid control sensor wire connector to the front axle hub sub-assembly.
      NOTE:

      Do not twist the front skid control sensor wire when installing it.

    3. Connect the pad wear indicator wire connector to the front skid control sensor wire clamp.
      NOTE:

      Do not twist the pad wear indicator wire when installing it.

  6. STABILIZE SUSPENSION 
    1. Install the front wheel.

      Refer to PROCEDURE - Step 1

    2. Lower the vehicle and bounce it up and down several times to stabilize the front suspension.
    3. Remove the front wheel.

      Refer to PROCEDURE - Step 1

    4. Using a jack and a wooden block, apply load to the suspension so that the front lower suspension arm assembly is horizontal.
      GTY652496Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Wooden Block
      *b Jack
      Wooden block placement location
      WARNING:
      • Do not raise the jack up too high.
      • The vehicle could fall, resulting in a serious accident.
      GTY613081Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:
      • When jacking up the front lower suspension arm assembly, be sure to jack it up slowly.
      • Make sure to perform this operation with the vehicle kept as low as possible.
  7. FULLY TIGHTEN FRONT SHOCK ABSORBER WITH COIL SPRING 
    1. Fully tighten the front shock absorber with coil spring bolt.

      Torque: 108 N*m (1101 kgf*cm, 80 ft.*lbf) 

      NOTE:

      Because the nut has its own stopper, do not turn the nut. Tighten the bolt with the nut secured.

  8. INSTALL FRONT WHEEL 

    Refer to PROCEDURE - Step 1

  9. INSPECT AND ADJUST FRONT WHEEL ALIGNMENT 

    Refer to ADJUSTMENT [10/2015 - ]