2009 Subaru Tribeca BaseFACTORY OEM SERVICE PROCEDURE

Front Differential Assembly: Installation

  1. When installing the front differential assembly to case, be careful not to damage the inside of case (particularly, the differential side retainer mating surface).
    Fig 1: Identifying Front Differential Assembly
    G06343026Courtesy of SUBARU OF AMERICA, INC.
  2. Install the O-ring to left and right side retainer.
  3. Using the ST, install the side retainer. Ref. to ADJUSTMENT , Front Differential Assembly.

    ST 18630AA010 WRENCH COMPL RETAINER

  4. Adjust the backlash of the front differential. Ref. to ADJUSTMENT , Front Differential Assembly.
  5. Install the lock plate.

    Tightening torque: 

    25 N.m (2.5 kgf-m, 18.4 ft-lb) 

    Fig 2: Identifying Lock Plate
    G06343027Courtesy of SUBARU OF AMERICA, INC.
  6. Install the converter case to the transmission case. Ref. to INSTALLATION , Converter Case.
  7. Install the transmission harness connector to the stay.
  8. Install the ATF cooler pipe. Ref. to INSTALLATION , ATF Cooler Pipe and Hose.
  9. Install the oil charge pipe together with an O-ring. Ref. to INSTALLATION , Oil Charge Pipe.
  10. Install the torque converter assembly. Ref. to INSTALLATION , Torque Converter Assembly.
  11. Install the transmission assembly to the vehicle. Ref. to INSTALLATION , Automatic Transmission Assembly.
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.