Driveshaft - Rear, One-Piece

Driveshaft - Rear, One-Piece

Removal
1. Raise and support the vehicle.





2. To maintain driveline balance, index-mark the driveshaft flange yoke and the pinion flange.





3. CAUTION: Do not allow the output shaft to turn.

Index-mark the driveshaft yoke and the transmission tailshaft.





4. Remove the four bolts.





5. CAUTION: The driveshaft flange yoke fits tightly on the pinion flange pilot. Never hammer on the driveshaft or any of its components to disconnect the yoke from the flange. Pry only in the area shown, with a suitable tool, to disconnect the yoke from the flange.

Using a suitable tool as shown, disconnect the driveshaft flange yoke from the pinion flange.
6. Lower the driveshaft and slide it off the output shaft.

Installation





1. Inspect the extension housing seal for damage. Install a new seal as necessary.





2. Check to see if a paint mark is present on the front of the driveshaft and on the end of the transmission output shaft.
^ Vehicles equipped with 4R70W transmissions have the paint mark.
^ Vehicles equipped with 4R100 transmissions do not have the paint mark.





3. Lubricate the slip-yoke spline with grease.








4. NOTE: Depending on the paint markings, there are two methods of indexing the driveshaft and the output shaft.

Install the driveshaft.
1 Preferred method - align the factory-made paint marks on the output shaft and driveshaft and position the driveshaft in the transmission.
^ Alternate method - align the index-marks and position the driveshaft in the transmission.





5. CAUTION: Install the driveshaft with new bolts. If new bolts are not available, apply sealer to the threads of the original bolts. The driveshaft flange yoke fits tightly on the pinion flange pilot. To make sure that the yoke seats squarely on the flange, tighten the bolts evenly in a cross pattern as shown.

Position the driveshaft flange yoke on the pinion flange with the index marks aligned, and install the bolts.