GM Service Manual Online
For 1990-2009 cars only

Tools Required

J 38196 Rear Main Oil Seal Installer


    Object Number: 26129  Size: SH
  1. Apply engine oil to the inside diameter and the outside diameter of the new seal.
  2. Slide the new seal over the mandrel until the back of the seal bottoms squarely against the collar of the tool.

  3. Object Number: 37747  Size: SH
  4. Use the following procedure in order to install the seal:
  5. 3.1. Attach the J 38196 to the crankshaft by hand or tighten attaching screws to 5 N·m (54 lb in). Refer to

    Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

    in General Information.
    3.2. Turn the T handle of the J 38196 so that the collar pushes the seal into the bore. Turn the handle until the collar is tight against the case. Ensure that the seal is seated properly.
    3.3. Loosen the T handle of the J 38196 until it comes to a stop.
    3.4. Remove the attaching screws.