GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Notice: Do not strike or drop the propeller shaft, or allow the universal joints to bend to extreme angles, as internal joint damage might occur.

    Important: The two-piece propeller shaft and the support bearing used with the 3800 (VIN K) engine are not serviceable separately. The propeller shaft and the support bearing should be replaced as a complete assembly only.

  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.

  2. Object Number: 180337  Size: SH
  3. Mark the relationship of the propeller shaft (2) to the pinion gear yoke (1).
  4. Place an adjustable stand under the propeller shaft near the support bearing in order to support the propeller shaft.

  5. Object Number: 180339  Size: SH
  6. Remove the bolts (4) from the support bearing (3).
  7. Remove the following components from the torque arm (2):
  8. • The support bearing (3)
    • The washers (1)

    Object Number: 180340  Size: SH
  9. Remove the propeller shaft bolts (2).
  10. Remove the propeller shaft retainers (1).
  11. Important: Support the propeller shaft during removal.


    Object Number: 180342  Size: SH
  12. Perform the following steps in order to remove the propeller shaft:
  13. 8.1. Withdraw the slip yoke (3) from the transmission.
    8.2. Move the propeller shaft (1 and 4) rearward and pass the propeller shaft under the housing (2).

    If the bearing caps are loose, tape the bearing caps together in order to prevent the loss of the needle roller bearings.

  14. Inspect the transmission output shaft splines for burrs.

  15. Object Number: 180343  Size: SH
  16. Inspect the outer diameter of the slip yoke (1) for burrs.
  17. Inspect the splines of the slip yoke for the following conditions:
  18. • Damage
    • Twisting
    • Wear
  19. Inspect the relationship of the splines of the slip yoke to the transmission output shaft splines. The splines of the slip yoke must meet the following conditions:
  20. • The slip yoke splines and the transmission output shaft splines are of equal number.
    • The slip yoke splines and the transmission output shaft splines must engage properly.

    Object Number: 180344  Size: SH
  21. Inspect the pinion gear yoke (1) at the universal joint cap mating surface for the following conditions:
  22. • Burrs
    • Foreign material
  23. If the mating surface of the pinion gear yoke exhibits the above conditions, repair or replace the pinion gear yoke. Refer to Drive Pinion Flange/Yoke and/or Oil Seal Replacement in Rear Drive Axle.

Installation Procedure

Notice: The propeller shaft must be supported carefully during handling to avoid jamming or bending of parts.

  1. Lubricate the slip yoke with chassis lubricant.
  2. Install the slip yoke to the transmission output shaft.
  3. Place the center of the propeller shaft on the adjustable stand in order to support the propeller shaft.
  4. Important: Align the reference marks on the propeller shaft with the reference marks on the pinion yoke to ensure the proper propeller shaft and pinion yoke relationship.


    Object Number: 180337  Size: SH
  5. Install the rear of the propeller shaft (2) to the pinion gear yoke (1).
  6. Install the rear universal joint to the pinion gear yoke.
  7. Ensure that the bearing caps are properly seated.


    Object Number: 180340  Size: SH
  8. Install the propeller shaft retainers (1).
  9. 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.

  10. Install the propeller shaft bolts (2).
  11. Tighten
    Tighten the propeller shaft bolts evenly to 22 N·m (16 lb ft).


    Object Number: 180339  Size: SH
  12. Install the following components to the torque arm (2):
  13. • The washers (1)
    • The support bearing (3)
    • Install the bolts (4) to the support bearing

    Tighten
    Tighten the propeller shaft support bearing bolts to 50 N·m (37 lb ft).

  14. Remove the adjustable stand from under the propeller shaft.
  15. Lower the vehicle.