Front

Propeller Shaft Replacement-Front

Removal Procedure
1. Raise and support the vehicle. Refer to Vehicle Lifting.
2. If the vehicle is equipped with a transfer case, place a drain pan or suitable container underneath the transfer case. Remove the drain plug and drain the fluid.
3. Place index marks on the pinion flange yoke and the differential pinion flange.





4. Remove the 4 bolts (1) and 4 nuts holding the yoke. Separate the pinion flange yoke from the differential pinion flange.
5. Remove the sliding yoke from the transfer case. Remove the propeller shaft (1) from the vehicle.
6. Inspect the propeller shaft for dents or other damage. Replace the shaft if the shaft is damaged.
7. Inspect the universal joints for smooth pivoting. If the universal joints bind or appear tight, replace the universal joints as assemblies.





8. Inspect the sliding yoke splines (1) for excessive wear or damage. If the splines (1) appear worn or rounded, replace the sliding yoke (3).
9. Inspect the sliding yoke surface for the following:
^ Scoring
^ Burrs
^ Other damage
If the sliding yoke surface appears scored or rough, replace the sliding yoke.

10. Inspect the pinion flange yoke for the following:
^ Cracks
^ Distortion
^ Other damage
If the pinion flange yoke appears damaged or distorted, replace the pinion flange yoke.

Installation Procedure
1. Install the sliding yoke into the transfer case.

Notice: Refer to Fastener Notice in Service Precautions.





2. Install the pinion flange yoke to the differential pinion flange (1) aligning index marks on the pinion flange yoke and differential pinion flange. Secure the pinion flange yoke with 4 bolts and the 4 nuts.
^ Tighten the propeller shaft bolts and nuts to 50 Nm (37 ft. lbs.).
If the vehicle is equipped with a transfer case, apply GM P/N 12346004, or equivalent, to the threaded portion of the transfer case drain plug.
3. If the vehicle is equipped with a transfer case, install the transfer case drain plug into the transfer case.
^ Tighten the transfer case drain plug to 28 Nm (21 ft. lbs.).
4. If the vehicle is equipped with a transfer case, refill the transfer case with approximately 1.7 liters (1.8 quarts) of 75W90 GI-4 synthetic lubricant GM P/N 12346190, or equivalent.
5. If the vehicle is equipped with a transfer case, apply GM P/N 12346004, or equivalent, to the threaded portion of the transfer case oil level filler plug.
6. If the vehicle is equipped with a transfer case, install the transfer case oil level/filler plug into the transfer case.
^ Tighten the transfer case oil level/filler plug to 28 Nm (21 ft. lbs.).
7. If the vehicle is equipped with a transfer case, remove the drain pan from underneath the transfer case.
8. Lower the vehicle.