Ford 4L5Z-4635-A U-Joint Repair Kit

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Transfer the sockets to the other side and press the opposite bearing cap out in the same manner.

To check for worn universal joints, follow these steps: a) Drive the vehicle slowly until the transmission is in High gear, then let off the accelerator and accelerate again. A clunking or knocking noise will indicate worn universal joints. b) Drive the vehicle at about 10 to 15 mph, place the transmission in Neutral, and listen for abnormal driveline noises while coasting. c) Raise the vehicle and support it securely on jackstands. With the transmission in Neutral, manually turn the driveshaft(s) and watch the universal joints for excessive play.

Start the front spider into the bearing cap and then partially install the other cap. Align the spider and press the bearing caps into position, being careful not to damage the dust seals. Install the snap rings, then install the grease fitting (if equipped) and fill the joint with grease. Finally, install the driveshaft and tighten the flange bolts to the specified torque.

Since the driveshaft is a balanced unit, it's important that no undercoating, mud, etc., be allowed to stay on it.