Express 1/2 Ton Van V6-4.3L VIN X (2003)
Slip Yoke: Service and Repair
Slip Yoke Spline Lubrication
1. Apply chassis lubricant (GM P/N 12377985 or equivalent) at the slip spline grease fitting until the grease begins to escape through the vent hole.
2. If the slip spline is dry or corroded, clean the splined surface on the slip yoke by doing the following:
2.1.
Remove the propeller shaft from the vehicle.
2.2.
Wire brush the affected area.
2.3.
Wipe clean the affected area.
2.4.
Install the propeller shaft.
2.5.
Apply chassis lubricant (GM P/N 12377985 or equivalent) at the slip spline grease fitting until the grease begins to escape through the vent
hole.