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Drive Pinion Shaft Assembly: Assembly

WARNING: This page is about a different variant/trim than selected.
  1. Using the ST, measure drive pinion measurement A.
    NOTE: When selecting the drive pinion shim, refer to measurement A.

    ST 398643600 GAUGE

    Fig 1: Measuring Drive Pinion Measurement A
    G05003479Courtesy of SUBARU OF AMERICA, INC.
  2. Using the ST and a press, attach the double taper roller bearing inner race (front side) to the drive pinion shaft.

    ST 18723AA000 REMOVER

    CAUTION: Do not apply pressure in excess of 40 kN (4.0 ton, 4.4 US ton, 3.9 Imp ton).
    NOTE: Use a new double taper roller bearing.
    Fig 2: Attaching Double Taper Roller Bearing Inner Race (Front Side) To Drive Pinion Shaft
    G05336237Courtesy of SUBARU OF AMERICA, INC.
  3. Using the ST and a press, attach the double taper bearing outer race and the double taper roller bearing to the drive pinion shaft.

    ST 18723AA000 REMOVER

    NOTE:
    • Use a new double taper roller bearing.
    • Push in to a position where the bearing rotates smoothly.
    Fig 3: Attaching Double Taper Roller Bearing To Drive Pinion Shaft
    G10269187Courtesy of SUBARU OF AMERICA, INC.
  4. Attach a new lock washer and a new lock nut.
  5. Set the ST to the drive pinion, and tighten the lock nut.

    ST1 18667AA000 HOLDER

    ST2 18664AA000 BASE

    ST3 18621AA000 ADAPTER WRENCH

    ST4 18852AA000 TORQUE WRENCH

    NOTE:
    • Tighten using the ST and the straight line torque wrench.
    • Make sure the lock washer is installed in the proper direction.

    Tightening torque: 

    265 N.m (27.0 kgf-m, 195.4 ft-lb) 

    Fig 4: Attaching Lock Washer And Lock Nut
    G10269188Courtesy of SUBARU OF AMERICA, INC.
    NOTE: When using a torque wrench other than ST4, use the calculation below to calculate and tighten the lock nut.

    Tighten using the ST and the straight line torque wrench.

    T = L1/(0.1 + L1) x 285

    T N.m (kgf-m, ft-lb) Torque wrench setting
    L1 m (in) Torque wrench length
    0.1 m (3.94 in) Length of ST
    285 N.m (29.0 kgf-m, 210 ft-lb) Tightening torque (lock nut)
    Fig 5: Identifying Torque Wrench Length
    G10269189Courtesy of SUBARU OF AMERICA, INC.
  6. Measure the starting torque. <Ref. to INSPECTION , Drive Pinion Shaft Assembly.>
  7. Using the ST, crimp the lock nut in 2 locations, with dimensions within A 37±0.5 mm (1.46±0.02 in).

    ST 18670AA000 PUNCH

    NOTE: Do not damage the crimp area of the lock nut.
    Fig 6: Identifying Lock Nut Dimension
    G05336241Courtesy of SUBARU OF AMERICA, INC.
  8. Using the ST, measure drive pinion measurement B.

    ST 398643600 GAUGE

    Fig 7: Measuring Drive Pinion Measurement B
    G05003485Courtesy of SUBARU OF AMERICA, INC.
  9. Calculate from the calculation below to select 1 or 2 drive pinion shims from the following table.

    6.5±0.0625 mm - (B - A) [0.26±0.0025 in - (B - A)]

    NOTE:
    1. Measurement value in step  1
    2. Measurement value in step  8
    Drive pinion shim
    Part No. Thickness mm (in)
    32295AA270 0.15 (0.0059)
    32295AA280 0.175 (0.0069)
    32295AA290 0.20 (0.0079)
    32295AA300 0.225 (0.0089)
    32295AA310 0.25 (0.0098)
    32295AA320 0.275 (0.0108)
  10. Apply transmission gear oil to the side face of the double taper roller bearing, and attach the drive pinion shaft and the selected shims to the adapter plate.

    Tightening torque: 

    54 N.m (5.5 kgf-m, 39.8 ft-lb) 

  11. Install the oil guide A.

    Tightening torque: 

    18 N.m (1.8 kgf-m, 13.3 ft-lb) 

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