GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2007 🢒 STS 🢒 Preface 🢒 Cautions and Notices 🢒 Front Propeller Shaft Replacement

Removal Procedure
  1. Raise and support vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Remove the propeller shaft heat shield. Refer to Shield Replacement .

    3. Important: Reference mark the location of the propeller shaft constant velocity (CV) joint to the transfer case flange.

  3. Remove the propeller shaft CV joint-to-differential flange bolts.

    4. Object Number: 850252 Size: SH
  4. Install a flat-bladed tool into the notch on the differential flange.
  5. Using a flat-bladed tool, carefully move the propeller shaft toward the rear of the vehicle in order to release the propeller shaft CV joint from the differential pinion flange.
  6. Remove the propeller shaft CV joint-to-transfer case flange bolts.
  7. Install a flat-bladed tool into the notch on the transfer case flange.
  8. Using a flat-bladed tool, carefully move the propeller shaft toward the front of the vehicle and remove the propeller shaft from the transfer case flange.

    9. Object Number: 1204212 Size: SH
  9. Inspect the propeller shaft for the following conditions:
    10. • Rotational movement between the CV joint (2) and the propeller shaft tube (1)
    • Grease leaking from the CV joints
    • Damage to the CV joints
    • Damage to the CV seals
    • Binding of either CV joint
  10. If any of the conditions are found, replace the front propeller shaft.

Installation Procedure

    Object Number: 901932 Size: SH

    Important: Ensure that the coned end of the propeller shaft CV joint is installed into the transfer case flange.

  1. Install the propeller shaft to the transfer case flange.

    2. Object Number: 901926 Size: SH
  2. Install the propeller shaft to the differential flange.
  3. Inspect the propeller shaft-to-flange bolts. Replace if damaged or worn.

    4. Important: If reusing the propeller shaft-to-flange bolts to ensure proper adhesion and fastener retention, the threads must be free of debris prior to the application of threadlocker.

  4. Thoroughly clean the threads using denatured alcohol or equivalent and allow to dry. Apply threadlocker GM P/N 12345493 (Canadian P/N 10953488), or equivalent to the propeller shaft-to-flange bolt. Ensure that there are no gaps in the threadlocker along the length of the filled area of the bolt. Allow the threadlocker to cure approximately 10 minutes before installation.

    5. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 859586 Size: SH
  5. Install the propeller shaft CV joint-to-differential flange bolts. Ensure that the crescent washers are in place on each pair of bolts.

    6. Tighten
    Tighten the 6 propeller shaft CV joint-to-differential flange bolts in sequence (1-6) to 36 N·m (27 lb ft).

    Important: If reusing the propeller shaft-to-flange bolts, to ensure proper adhesion and fastener retention, the threads must be free of debris prior to the application of threadlocker.

  6. Thoroughly clean the threads using denatured alcohol or equivalent and allow to dry. Apply threadlocker GM P/N 12345493 (Canadian P/N 10953488), or equivalent to the propeller shaft to the flange bolt. Ensure that there are no gaps in the threadlocker along the length of the filled area of the bolt. Allow the threadlocker to cure approximately 10 minutes before installation.
  7. Install the front propeller shaft coupler-to-transfer case flange bolts. Ensure that the crescent washers are in place on each pair of bolts.

    8. Tighten
    Tighten the 6 propeller shaft CV joint-to-transfer case flange bolts in sequence (1-6) to 36 N·m (27 lb ft).


    Object Number: 1204212 Size: SH

    Important: Ensure that there is no rotational movement between the CV joint (2) and the propeller shaft tube (1).

  8. Install the propeller shaft heat shield. Refer to Shield Replacement .
  9. Lower the vehicle.