Driveshaft, Front

Removal

1. To maintain driveshaft coupling shaft balance, mark the driveshaft slip yoke (4841) in relation to the transfer case yoke for correct positioning during installation.

2. Remove the nuts and U-bolts (bolts for F-350 at transfer case) that connect the rear driveshaft slip yoke to the transfer case and the front yoke to the front drive axle.

3. Remove the driveshaft from the vehicle. Wrap tape around the bearing caps to prevent the bearings from falling off the U-joint spiders.

Installation

1. NOTE: If the driveshaft slip yoke and slip yoke boot have been separated from the splined stub shaft on the driveshaft, refer to Slip Between Center Driveshaft in the Disassembly and Assembly portion of this section.

   Install the driveshaft so the marks on the driveshaft slip yoke and transfer case yoke are in alignment.

2. Install the nuts and U-bolts that retain the driveshaft slip yoke to the transfer case yoke. Tighten nuts to 11-20 Nm (8-15 lb-ft). On F-350 tighten bolts to 27-38 Nm (20-28 lb-ft).

3. Install the nuts and U-bolts that retain the front driveshaft and coupling shaft yoke to the front drive axle. Tighten nuts to 11-20 Nm (8-15 lb-ft).

With Double Cardan U-Joint, F-350 4x4 Front and Bronco Rear

Removal

1. To remove the rear driveshaft (4602) on Bronco, index mark the driveshaft in relation to the transfer case and rear axle companion flange. Disconnect the double Cardan U-joint from the flange at the transfer case and the single U-joint from the flange at the rear axle (4001). Wrap tape around the bearing caps to prevent the bearings from falling off the U-joint spiders. Remove the driveshaft.

2. To remove the front driveshaft on F-350 4x4, index mark the driveshaft in relation to the transfer case and front axle universal joint flange. Disconnect the double Cardan joint from the flange at the transfer case and the single U-joint from the flange at the front axle. Remove the driveshaft. Wrap tape around the bearing caps (front) to prevent the bearings from falling off the U-joint spiders.

Installation

1. To install the front driveshaft on F-350 4x4, align index marks and position the single U-joint end of the driveshaft to the front axle and install the U-bolts and nuts.

2. Position the double Cardan joint to the transfer case with index marks aligned and install the four bolts and lockwashers.

3. Tighten the bolts at the transfer case to 27-38 Nm (20-28 lb-ft), and the nuts at the front axle to 11-20 Nm (8-15 lb-ft).

4. NOTE: When installing a new rear driveshaft, align the factory-made yellow paint mark at the rear of the driveshaft tube with the factory-made yellow paint mark on the outside diameter of the rear axle companion flange. If the paint marks are not visible, and a vibration is present after driveshaft installation, refer to Section 05-00.

   To install the rear driveshaft on Bronco, position the single U-joint end of the driveshaft to the rear axle with index marks aligned and install the four bolts.

5. Position the double Cardan joint to the transfer case with index marks aligned and install the four bolts.

6. Tighten the bolts at the transfer case and the rear axle to 83-118 Nm (61-87 lb-ft).

   
   
   
   
   
   

   Item	Part Number	Description
   1	4635	Double Cardan Assembly
   2	4635	U-Joint Assembly
   3	4784	Driveshaft Center Yoke
   4	4782	Driveshaft Centering Socket Yoke
   5	—	Centering Spring (Part of 4635)
   6	7B214	Transfer Case Yoke (Flange)
   7	4841	Driveshaft Slip Yoke