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Rear Differential: Installation

WARNING: This page is about a different car, the 2008 Subaru Impreza. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install the rear differential member plate to the rear differential.
    Fig 1: Identifying Rear Differential Member Plate
    G05662524Courtesy of SUBARU OF AMERICA, INC.
  2. Set the rear differential to transmission jack.
  3. Adjust the transmission jack, and insert the rear differential stud bolt into rear crossmember bushing properly.
    Fig 2: Adjusting Transmission Jack
    G05662522Courtesy of SUBARU OF AMERICA, INC.
  4. After inserting the rear differential stud bolt into the rear crossmember bushing, lift up the transmission jack and align the rear differential to its attachment position.
    Fig 3: Aligning Rear Differential
    G05662519Courtesy of SUBARU OF AMERICA, INC.
  5. Install the dynamic damper assembly. (wagon AT model)
    Fig 4: Identifying Dynamic Damper Assembly (Wagon AT Model)
    G05662521Courtesy of SUBARU OF AMERICA, INC.
  6. Tighten a new self-locking nut temporarily to rear crossmember.
    Fig 5: Identifying Rear Crossmember Self-Locking Nut
    G05662520Courtesy of SUBARU OF AMERICA, INC.
  7. Install the rear differential front member with a new self-locking nut.

    Tightening torque: 

    T1 : 50 N.m (5.1 kgf-m, 36.9 ft-lb) 

    T2 : 110 N.m (11.2 kgf-m, 81.1 ft-lb) 

    Fig 6: Identifying Rear Differential Front Member With Self-Locking Nut
    G05343031Courtesy of SUBARU OF AMERICA, INC.
  8. Tighten the self-locking nut.

    Tightening torque: 

    70 N.m (7.1 kgf-m, 51.6 ft-lb) 

    Fig 7: Identifying Self-Locking Nut
    G05662520Courtesy of SUBARU OF AMERICA, INC.
  9. Attach the ST to rear differential.

    ST 28099PA090 OIL SEAL PROTECTOR

    Fig 8: Identifying Special Tool
    G05343025Courtesy of SUBARU OF AMERICA, INC.
  10. Insert the spline shaft until the spline portion comes inside the side oil seal.
    Fig 9: Inserting Spline Shaft
    G05343026Courtesy of SUBARU OF AMERICA, INC.
  11. Remove ST from rear differential.

    ST 28099PA090 OIL SEAL PROTECTOR

  12. Push the housing to insert DOJ into rear differential.
    Fig 10: Inserting DOJ Into Rear Differential
    G05662533Courtesy of SUBARU OF AMERICA, INC.
  13. Lower the transmission jack.
  14. Installing procedure hereafter is in the reverse order of removal.
  15. After installing, fill the differential carrier with gear oil up to the bottom of the filler plug hole. <Ref. to DIFFERENTIAL GEAR OIL . >