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Home >> Lexus >> 2005 >> IS 300 Base, Automatic >> Repair and Diagnosis >> Suspension >> Wheel Alignment >> Suspension And Axle >> Front Lower Suspension Arm >> Installation

Front Lower Suspension Arm: Installation

  1. INSTALL SHOCK ABSORBER LOWER BRACKET TO NO. 1 LOWER SUSPENSION ARM 
    1. Torque: 25 N.m (250 kgf.cm, 18 ft.lbf) 
  2. INSTALL NO. 1 LOWER SUSPENSION ARM 
    1. Install the No. 1 lower suspension arm to the suspension member with the cam bolt, cam plate, washer and nut.
      1. Torque: 184 N.m (1,880 kgf.cm, 136 ft.lbf) 

      HINT:

      After stabilizing the suspension, align the matchmarks on the cam plate and suspension member, and torque the nut.

      Fig 1: Aligning Matchmarks On Cam Plate And Suspension Member
      G02949701Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Connect the lower ball joint to the No. 1 lower suspension arm with the nut.
      1. Torque: 123 N.m (1,250 kgf.cm, 91 ft.lbf) 
    3. Install a new cotter pin.

    If the holes for the cotter pin are not aligned, tighten the nut further up to 60°.

  3. CONNECT STEERING GEAR ASSEMBLY 
    1. Torque: 74 N.m (755 kgf.cm, 55 ft.lbf) 
    NOTE: Be careful not to damage the return tube and pressure feed tube.
  4. CONNECT SHOCK ABSORBER TO FRONT SHOCK ABSORBER BRACKET 
    1. Torque: 64 N.m (650 kgf.cm, 47 ft.lbf) 
  5. INSTALL STABILIZER BAR LINK 
    1. Torque: 
    2. Nut A: 49 N.m (500 kgf.cm, 36 ft.lbf) 
    3. Nut B: 95 N.m (970 kgf.cm, 70 ft.lbf) 

    HINT:

    If the ball joint turns together with the nut, use a hexagon wrench (5 mm) to hold the stud.

    Fig 2: Installing Stabilizer Bar Link
    G02949702Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  6. CONNECT HEIGHT CONTROL SENSOR LINK 
    1. Set the lower arm to the vehicle height.
    2. Install the sensor link to the lower arm bracket with a nut.
      1. Torque: 5.4 N.m (55 kgf.cm, 48 in.lbf) 
      NOTE:
      • Be careful not to brake the link fixing pin until the above operation is completed.
      • The pin can the broken after completion of the above, however, the sensor arm rotation angle shall not exceed the range of +/- 70° from the standard vehicle height.
      Fig 3: Installing Lower Arm Bracket And Nut
      G02949703Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  7. CONNECT TIE ROD END TO LOWER BALL JOINT 
    1. Connect the tie rod end to the lower ball joint with the nut.
      1. Torque: 54 N.m (550 kgf.cm, 40 ft.lbf) 
    2. Install a new clip.

    HINT:

    If the holes for the clip are not aligned, tighten the nut further up to 60°.

  8. INSTALL DISC AND BRAKE CALIPER 

    Install the disc, brake caliper and 2 bolts.

    1. Torque: 118 N.m (1,200 kgf.cm, 87 ft.lbf) 
  9. CONNECT NO. 2 LOWER SUSPENSION ARM TO NO. 1 LOWER SUSPENSION ARM 
    1. Torque: 245 N.m (2,500 kgf.cm, 181 ft.lbf) 

    HINT:

    After stabilizing the suspension, torque the bolt.

  10. INSTALL FRONT SUSPENSION MEMBER BRACE 
    1. Torque: 
    2. Bolt A: 119 N.m (1,210 kgf.cm, 88 ft.lbf) 
    3. Bolt B: 58 N.m (590 kgf.cm, 43 ft.lbf) 

    HINT:

    • Install the bolt A through the No. 2 lower suspension arm.
    • After stabilizing the suspension, torque the bolt A.
    Fig 4: Installing Front Suspension Member Brace
    G02949704Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  11. INSTALL RH AND LH REAR ENGINE UNDER COVER 
  12. INSTALL ENGINE UNDER COVER AND ENGINE UNDER COVER NO. 2 
  13. INSTALL FRONT WHEEL 
    1. Torque: 103 N.m (1,050 kgf.cm, 76 ft.lbf) 
  14. DEPRESS BRAKE PEDAL SEVERAL TIMES 
  15. CHECK FRONT WHEEL ALIGNMENT (See  FRONT WHEEL ALIGNMENT  )