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Home >> Subaru >> 2024 >> WRX Base >> Repair and Diagnosis >> Suspension >> Front Suspension System And Wheel Alignment >> Front Arm >> Assembly >> Pillow Ball Bushing

Pillow Ball Bushing

  1. Before installation, inspect the following items and replace any faulty part with a new one.
    • Check the arm assembly front for damage or cracks.
    • Check the bushing for abnormal cracks, damage or fatigue.
    • Check the boot on the ball joint for damage.
  2. Install the pillow ball bushing using ST1 and ST2.
    NOTE:
    • Align the upper face of arm assembly front and the end of bushing during installation.
    • Install so that the upper exposed length (a) of the bushing inner cylinder becomes longer than the lower exposed length (b).
    G16538556Courtesy of SUBARU OF AMERICA, INC.
    (a) Exposed length of inner cylinder (upper)
    (b) Exposed length of inner cylinder (lower)
    (c) Alignment line

    Preparation tool: 

    ST1: INSTALLER & REMOVER (20099AE020)

    ST2: REMOVER (18723AA000)

    NOTE: Place a metal plate on the ST1 to use the press.
    G16538557Courtesy of SUBARU OF AMERICA, INC.
    (a) Press
    (b) Arm ASSY front
    (c) Pillow ball bushing
    (d) Plate