GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 177821  Size: SH

    Important: Observe the position of all the driveline components. Accurately mark the relationship of the following components before removal:

       • The propeller shafts
       • The drive axles
       • The pinion flanges
       • The output shafts
    Reassemble all of the components in the exact relationship to each other prior to removal. Follow the specifications, the torque values, and any measurements obtained prior to disassembly.

  1. Raise the vehicle on a hoist and install suitable safety stands.
  2. Accurately reference mark the propeller shaft.
  3. Remove the bolts from the front axle.
  4. Remove the propeller shaft.
  5. 4.1. Slide the propeller shaft forward.
    4.2. Lower the propeller shaft and remove.

Installation Procedure


    Object Number: 177821  Size: SH
  1. Install the shaft. Align the previous reference marks.
  2. Assemble the shaft to the transfer case front output shaft.
  3. Important: Ensure that the propeller shaft assembly is fully engaged into the slip yoke. The retaining ring will snap into place when the shaft is properly engaged.

    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.

  4. Install the bolts to the front axle.
  5. Tighten
    Tighten the bolts to 20 N·m (15 lb ft).