This procedure applies to vehicles with one and two-piece driveshafts. Also note that two types of U-joint bolt-ups are used. One uses small clamps to join driveshaft and yoke; the other uses a flange-and-yoke bolted directly together.
- Place the transmission in neutral.
- Raise and safely support the vehicle securely on jackstands.
- With two-piece axles, mark the position of the center support bracket on the frame crossmember. Unbolt and remove the support bracket bolts.
- Matchmark the driveshaft and the rear axle drive yoke.
- Remove the rear U-joint clamp attaching bolts and both clamps from the rear axle yoke, if fitted. Some models may have a yoke bolted directly to the flange. Remove the bolts if this type is fitted.
- Use a suitable prybar to gently pry the U-joint out of the yoke.
- Wrap the U-joint caps with tape to prevent them from falling off the U-joint.
- Pull the driveshaft to the rear until the slip yoke clear the extension housing.
On two-piece driveshafts:
- Slide the rear half of the shaft off the front shaft splines at the center bearing. Remove the rear half.
- At the transmission end of the front half, remove the bushing retaining bolts and clamps, after matchmarking. If there is a driveshaft brake, there will be flange nuts.
- Use a hammer and punch to tap the slinger away from the shaft to provide room for a bearing splitter.
- Press off the bearing.
- Lubricate the front yoke of the driveshaft with transmission fluid and insert it into the transmission.
- Install the center bearing support bracket bolts. Leave final tightening to the end of the procedure.
- On models with a U-joint clamp, align the U-joint with the rear axle drive yoke and position the U-joint in the yoke. Install the yoke clamps and tighten 1 / 4 in. bolts to 14 ft. lbs. (19 Nm) and 5 / 16 in. bolts to 25 ft. lbs. (34 Nm).
- On models with a flange-and-yoke setup, tighten the bolts to 80 ft. lbs. (108 Nm).
- Tighten driveshaft brake flange nuts, if fitted, to 35 ft. lbs. (47 Nm).
- Tighten the center bearing bracket bolts to 50 ft. lbs. (68 Nm), ensuring that the bracket is aligned with the marks made on removal.
- Lower the vehicle.