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Home >> Subaru >> 2019 >> WRX STI Limited >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 5 (Manual Transaxle & Differential (TY751)) >> Transfer Drive Gear >> Inspection

Transfer Drive Gear: Inspection

WARNING: This page is about a different variant/trim than selected.
  1. Ball bearing

    Replace the ball bearing in following cases.

    • In case of broken or rusty ball bearings
    • In case of worn or damaged ball bearings
    • When the ball bearings fail to turn smoothly or emit noise in rotation after transmission gear oil has been applied.
  2. Transfer drive gear

    If the tooth face of transfer drive gear and the shaft are excessively broken or damaged, replace the transfer drive gear.

  3. Measure the clearance between snap ring and inner race of ball bearing with a thickness gauge.

    Clearance: 

    0.01 - 0.15 mm (0.0004 - 0.0059 in)

    G06652333Courtesy of SUBARU OF AMERICA, INC.

    If the measurement is not within specification, select a suitable snap ring and replace it.

    Snap ring (outer-30)
    Part No. Thickness mm (in)
    805030041 1.53 (0.0602)
    805030042 1.65 (0.0650)
    805030043 1.77 (0.0697)