Ford F5TZ-4635-A U-Joint Kit

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To replace single-cardan U-joints, make sure you have a press or vise and a universal joint service kit. First, take off the driveshaft and use pliers to remove snap-rings from the spider. Then place the driveshaft on a workbench with a vise. Sockets should be used to press bearing caps out of the yoke. Fill new universal joint bearings with grease, and position the spider and caps before pressing them into place; do not forget snap-rings. Dust seals must not be damaged. Add grease and mount the driveshaft. Cardan U-joints should have rings removed and positions marked. Remove bearing caps in the center yoke and driveshaft yoke. Replace the centering ball and dust cover on the companion flange. Disassemble the center yoke and driveshaft yoke, and install new spider bearing in the driveshaft yoke. Insert new caps and seals with grease fitting facing away from the center yoke.

Partially install one bearing cap, start the spider into the bearing cap, partially install the other cap, and then press the bearing caps into position.

It is advisable to have a press or large vise and a universal joint service kit ready before starting the procedure.

Problems with the driveshaft are typically signaled by noise or vibrations while driving. A road test can help confirm if the driveshaft is the source of the issue or if another vehicle component is at fault. If driveshaft trouble is suspected, it's advisable to inspect the driveline for possible problems.

The front driveshafts on 2009 and later models use CV joints instead of U-joints.

Strike the driveshaft yoke sharply with a hammer or strike the yoke with a brass hammer to relieve tension and slightly spring the yoke ears.

Driveshafts have a "slip yoke" at the front end that inserts into the extension housing of the transmission or transfer case. On two-piece rear driveshafts, a center bearing supports the driveline. The rear end of all rear driveshafts connects to the rear axle's differential pinion flange using a flange yoke with four bolts. Front driveshafts on 4WD models may have a slip yoke at either the front or rear end, depending on the vehicle type.