F 250 4WD LD Pickup V8-5.4L SOHC VIN L (1997)
Center Support: Testing and Inspection
COUPLING SHAFT CENTER BEARING ALIGNMENT
Vehicle noise and vibration can be caused by dislocated and or failed driveshaft center bearing support rubber insulator, contaminated driveshaft center
bearing support or excessive compression of the rubber insulator.
The repair for this condition is as follows:
1. Remove the coupling shaft from the vehicle.
2. Perform the following steps:
(1) Remove the driveshaft center bearing bracket and retainer.
(2) Remove the rubber insulator.
(3) Press the driveshaft center bearing support and bearing retainer off the coupling shaft.
(4) Press the dust slinger off the coupling shaft.
3. Replace the center bearing assembly.
4. Install driveshaft center bearing support in rubber insulator and press bearing on shaft with the turned-in lip toward the dust slinger (forward). The
support bracket must be installed with the deep flange rearward.
5. Reassemble the coupling shaft.
6. Reinstall the driveline in the vehicle with the yokes phased properly.
7. Road test to verify resolution of condition.
8. If the vibration still exists, insert 1.59 mm (1/16 in) shims between the driveshaft center bearing bracket and support plate (on bolt ends of
driveshaft center bearing bracket) to reduce compression of the rubber insulator as required.
