Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

2012 Subaru Tribeca LimitedFACTORY OEM SERVICE PROCEDURE

Automatic Transmission Assembly: Installation

Replace the front differential side retainer oil seal.
1. Remove the oil seal by using flat tip screwdriver etc.
2. Install a new oil seal using ST.
  ST 18675AA000 DIFFERENTIAL SIDE OIL SEAL INSTALLER
  NOTE:
  - Apply oil to the oil seal lips.
  - Be sure to replace the differential side oil seal after the procedure of removing front drive shaft from transmission.
    
    Fig 1: Identifying Differential Side Retainer Oil Seal
    Courtesy of SUBARU OF AMERICA, INC.
Attach the ST to converter case.
ST 498277200 STOPPER SET

Fig 2: Identifying Stopper Set
Courtesy of SUBARU OF AMERICA, INC.
Tap the transmission hanger in the rear side of transmission with a rubber hammer to bend it until it is in close contact with the transmission case.
CAUTION: Do not apply excessive load or impact to the transmission case.

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.