REMOVAL & INSTALLATION
- Raise and support the vehicle on jackstands.
It may be necessary to move the exhaust pipe and insulator out of the way on some models.
- Scribe matchmarks on the rear of the driveshaft and the companion flange.
- Remove the bolts and nuts from the companion flange.
- Pull the rear of the driveshaft downward and pull the splined portion at the front out of the transmission. Plug the hole in the transmission extension housing.
- To install, oil the splines and reverse the removal procedures. Make sure that the marks made in Step 3 align. Tighten the flange bolts to 18-23 ft. lbs. (25-32 Nm) on 1970-74 models, 25-33 ft. lbs. (35-45 Nm) on 1975-84 models and 29-33 ft. lbs. (39-44 Nm) 1985-88 models.
See Figures 1 and 2
The universal joints used on 1975 and later models cannot be disassembled. If defective, the entire driveshaft must be replaced as a unit.
- Clean all the parts in a safe solvent.
- Mark the driveshaft and joint so that they can be reassembled in exactly the same position.
- Using snapring pliers or equivalent, remove the snaprings.
- Using a soft hammer, lightly tap the base of the yoke and remove each bearing race.
- Check the spider bearing journals for dents or brinell marks. Make sure that the yoke holes are not worn.
- Check the snaprings, bearings and seal rings, replace the parts (as necessary).
- Check the shaft tube for dents or cracks, then replace (if necessary).
- To assemble, reverse the disassembly procedures.
The needle rollers may be held in the races with grease. Reusable bearings should be carefully packed with grease.
- Install the snaprings that are equal in thickness opposite each other. Choose the thickness so that play will not exceed 0.0008 in. (0.02mm).
- Check the frictional resistance of the joint, it should not exceed 9 in. lbs. (1 Nm) on the 240 Z models or 13 in. lbs. (1.4 Nm) on the 260 Z models.