Grand Wagoneer V8-360 5.9L VIN 7 2-bbl (1989)
Universal Joint: Service and Repair
Single Cardan Joint
With Universal Joint Replacement Tool
DISASSEMBLY
1.
Place driveshaft in a vise using care to avoid damaging it.
2.
Remove bearing retaining snap rings. Some universal joints use injected nylon retainers in place of snap rings. During servicing, the snap
rings supplied with the replacement universal joint assembly must be used.
3.
Position tool on shaft and press bearing out of yoke. If bearing cannot be pressed all the way out, remove it using vise grips or channel lock pliers
or strike center yoke with hammer. Mark yoke and shaft to ensure they will be reassembled in their same relative positions.
4.
Reposition tool so that it presses on the spider in order to press other bearing from opposite side of flange.
5.
If used, remove flange from spider.
ASSEMBLY
1.
Start new bearing into yoke, then position spider into yoke and press bearing until it is 1/4 inch below surface.
2.
Remove tool and install a new snap ring.
3.
Start new bearing in opposite side of yoke, then install tool and press on bearing until opposite bearing contacts snap ring.
4.
Remove tool and install remaining snap ring.
Without Universal Joint Replacement Tool
DISASSEMBLY
1.
Remove snap rings (or retainer plates) that retain bearings in yoke and driveshaft.
2.
Place U-joint in a vise. Do not clamp sliding yoke or driveshaft tube in vise. Clamp only forged portion of sliding yoke or driveshaft yoke.
To avoid yoke distortion, do not over tighten.
3.
Select a wrench socket with an outside diameter slightly smaller than the U-joint bearings. Select another wrench socket with an inside diameter
slightly larger than the U-joint bearings.
4.
Place the sockets at opposite bearings in the yoke so that the smaller socket becomes a bearing pusher and the larger socket becomes a bearing
receiver when the vise jaws come together. Close vise jaws until both bearings are free of yoke and remove bearings from the cross or spider.
5.
If bearings will not come all the way out, close vise until bearing in receiver socket protrudes from yoke as much as possible without using
excessive force. Then remove from vise and place that portion of bearing which protrudes from yoke between vise jaws. Tighten vise to hold
bearing and drive yoke off with a soft hammer.
6.
To remove opposite bearing from yoke, replace in vise with pusher socket on exposed cross journal with receiver socket over bearing cup. Then
tighten vise jaws to press bearing back through yoke into receiving socket.
7.
Remove yoke from driveshaft and again place protruding portion of bearing between vise jaws. Then tighten vise to hold bearing while driving
yoke off bearing with soft hammer.
8.
Turn spider or cross 1/4 turn and use the same procedure to press bearings out of driveshaft.
ASSEMBLY
1.
If old parts are to be reassembled, pack bearing cups with universal joint grease. Do not fill cups completely or use excessive amounts as over
lubrication may damage seals during reassembly. Use new seals.
2.
If new parts are being installed, check new bearings for adequate grease before assembling.
3.
With the pusher (smaller) socket, press one bearing part way into driveshaft. Position spider into the partially installed bearing. Place second
bearing into driveshaft. Fasten driveshaft in vise so that bearings are in contact with faces of vise jaws. Some spiders are provided with locating
lugs which must face toward driveshaft when installed.
4.
Press bearings all the way into position and install snap rings or retainer plates.
5.
Install bearings in yoke in same manner. When installation is completed, check U-joint for binding or roughness. If free movement is impeded,
correct the condition before installation in vehicle.
