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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1449 (Automatic Transmission - 4L60-E/4L65-E (Introduction, Service & Replacement)) >> Repair Instructions >> Transmission Extension Housing Rear Oil Seal Replacement >> Installation Procedure

Installation Procedure

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Installing Case Extension Housing Rear Oil Seal
    GM647512Courtesy of GENERAL MOTORS CORP.
  1. Lubricate the inside diameter of the new seal with J 36850 .
  2. Use the J 21426  with a soft faced mallet to install the seal.
  3. Install the seal to the extension housing.
  4. Install the propeller shaft. Refer to Propeller Shaft Replacement - Rear in Propeller Shaft.
  5. Remove the drain pan and lower the vehicle.
  6. Fill the transmission to the proper level with DEXRON® III transmission fluid. Refer to Transmission Fluid Checking Procedure .
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