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Home >> Subaru >> 2008 >> Outback Base, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 70 (Differentials) >> Rear Differential Front Oil Seal >> Replacement

Rear Differential Front Oil Seal: Replacement

WARNING: This page is about a different car, the 2006 Subaru Outback and 2006 Subaru Legacy. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect the ground cable from battery.
  2. Move the select lever or gear shift lever to neutral.
  3. Release the parking brake.
  4. Remove the oil drain plug, and drain gear oil.
    • Except for VA2-type
      Fig 1: Removing Oil Drain Plug
      G03832682Courtesy of SUBARU OF AMERICA, INC.
    • VA2-type
    Fig 2: Removing Oil Drain Plug - VA2-Type
    G03832683Courtesy of SUBARU OF AMERICA, INC.
  5. Install the oil drain plug.
    NOTE:
    • Apply liquid gasket to the oil drain plug for T-type.
    • Use a new aluminum gasket for VA1 -type.
    • Use a new metal gasket for VA2-type.

    Liquid gasket: 

    THREE BOND 1105 (Part No. 004403010) or equivalent 

    Tightening torque: 

    T-type: 

    49 N.m (5.0 kgf-m, 36.2 ft-lb) 

    VA1-type: 

    34 N.m (3.5kgf-m, 25.3 ft-lb) 

    For VA2-type: 

    29 N.m (3.0 kgf-m, 21.7 ft-lb) 

  6. Jack-up the rear wheel and support the body with rigid racks.
  7. Remove the rear exhaust pipe and muffler.
  8. Remove the propeller shaft. < Ref. to REMOVAL , Propeller Shaft. >
  9. Remove the self-locking nut while holding the companion flange with ST.

    ST 498427200 FLANGE WRENCH

    Fig 3: Removing Self-Locking Nut
    G03832684Courtesy of SUBARU OF AMERICA, INC.
  10. Extract the companion flange using ST.

    ST 399703600 PULLER ASSY

    Fig 4: Extracting Companion Flange Using ST
    G03832685Courtesy of SUBARU OF AMERICA, INC.
  11. Remove the oil seal using ST or screwdriver.

    ST 398527700 PULLER ASSY

    Fig 5: Removing Oil Seal Using ST Or Screwdriver
    G03832686Courtesy of SUBARU OF AMERICA, INC.
  12. Install a new oil seal with ST.

    ST 498447120 OIL SEAL INSTALLER

    Fig 6: Installing Oil Seal With ST
    G03832687Courtesy of SUBARU OF AMERICA, INC.
  13. Install the companion flange.
    NOTE: Use a plastic hammer to install companion flange.
  14. Tighten the self-locking nut within the specified torque range so that the turning resistance of companion flange becomes the same as that of before oil seal replacement.

    ST 498427200 FLANGE WRENCH

    NOTE: Use a new self-locking nut.

    Tightening torque: 

    T-type: 

    181 N.m (18.5 kgf-m, 134 ft-lb) 

    VA-type: 

    191 N.m (19.5kgf-m, 141 ft-lb) 

    Fig 7: Tightening Self-Locking Nut
    G03832688Courtesy of SUBARU OF AMERICA, INC.
  15. Hereafter, reassemble in the reverse order of disassembly.
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