Ford 6L5Z-4602-A Drive Shaft Assembly

On an open road, free of traffic, drive the vehicle slowly until the transmission is in High gear. Let off on the accelerator, allowing the vehicle to coast, then accelerate. A clunking or knocking noise will indicate worn universal joints. Drive the vehicle at a speed of about 10 to 15 mph and then place the transmission in Neutral, allowing the vehicle to coast. Listen for abnormal driveline noises. Raise the vehicle and support it securely on jack stands. With the transmission in Neutral, manually turn the driveshaft(s), watching the universal joints for excessive play.

The slip yokes on the driveshafts and the right front drive axle.

Installation is the reverse of the removal steps with the following additions. Raise the front of the driveshaft into position, ensuring the marks are in alignment. If not, make sure the transmission is still in Neutral, then turn the front wheels to line up the marks. Remove the tape securing the bearing cups and install the straps and bolts. Tighten the bolts to the torque specifications. On 2011 models, tighten the driveshaft-to-transfer case bolts in a crisscross pattern, to the torque specifications.