REMOVAL & INSTALLATION
See Figure 1
- Raise and support the car on jackstands.
- Drain the transfer case.
- Matchmark the differential companion flange and the driveshaft flange yoke.
- Unbolt the driveshaft from the differential flange.
- Remove the two center bearing attaching nuts.
Make sure you don't confuse the flat washer and the adjusting spacer. Keep them separate for assembly.
- Pull the driveshaft from the transfer case. Be careful to avoid damaging the transfer case oil seal.
- Align the matchmarks and install the driveshaft. Torque the center bearing nuts to 25-30 ft. lbs.; the driveshaft-to-differential flange nuts to 20-25 ft. lbs.
See Figures 2, 3 and 4
Matchmark the rear yoke to shaft and/or the center yoke to yoke for proper installation reference.
- Position the driveshaft assembly in a sturdy vise.
- Remove the snaprings which retain the bearing caps in the slip yoke and the driveshaft.
- Use a large punch or an arbor press and drive one of the bearing caps in toward the center of the universal joint. The joint will be forced through the opposite side of the yoke.
- As the opposite side bearing cap is forced from the yoke, grip it with a pair of pliers and pull it, in a twisting motion, out of the yoke.
- Press the spider cross toward the side you just pushed to force the cap back into the yoke. When the bearing cap starts to clear the yoke, pull it free with a pair of pliers. Repeat the procedure with the other side bearing caps.
- After removing the bearing caps, lift the bearing (spider) cross from the yoke. Thoroughly clean all dirt and foreign matter from the yoke area on both ends of the driveshaft.
When installing new bearing caps within the yokes, it is advisable to use an arbor press. However, if a press is not available, the bearings should be driven into position with extreme care. A heavy jolt on the needle bearing, in the cap, can easily damage or misalign them. A large vise and correct size drivers and spacers can sometimes be used, in place of a punch, to push the bearing caps in or out.
- Start a bearing cap into the yoke bore.
- Position the spider into the yoke and into the bearing cap. Push the cap the rest of the way into the yoke bore until it is about 6mm below the outside surface of the yoke. Install a new snapring.
- Start a bearing cap into the yoke on the opposite side of the one just installed. Carefully press it into the yoke while aligning the spider cross with the bearing center.
- Continue to pry the cap in until the opposite side bearing cap contacts the snapring. Install a new snapring on the side just installed. Check the clearance between the bearing cap face and the snapring. If it exceeds 0.025mm, install a thicker snapring. Check the joint for free movement. Complete the installation of the yoke and bearing caps.
- Position the driveshaft and work on the other end if service is required.
- After service is completed, check the assembled joints and yokes for freedom of movement. If misalignment of any part causes it to bind, a sharp rap on the side of the yoke with a brass hammer should seat the needle bearings, and provide the desired freedom of movement. Care should be exercised to firmly support the shaft end during this operation, as well as to prevent blows to the bearing caps themselves. Under no circumstances should a driveshaft be installed in a vehicle if there is any bind in the U-joints. If the binding remains, disassemble the yoke and joint a check the needle bearings for correctly vertical alignment.