F 450 4WD Super Duty V8-6.4L DSL Turbo (2008)
Remove and discard the 4 rear coupling shaft-to-rear axle bolts. Disconnect the driveshaft from the axle flange.
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Using mechanic's wire, support the driveshaft.
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To install, tighten in the sequence shown to 100 Nm (74 lb-ft).
4. NOTE: It may be necessary to tap the driveshaft yoke with a plastic or rubber soft-faced hammer if a pry area is not present on the driveshaft side.
Remove and discard the 4 driveshaft-to-transmission flange bolts. Disconnect the driveshaft from the transmission.
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Using mechanic's wire, support the driveshaft.
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To install, tighten flange to 100 Nm (74 lb-ft).
5. Index-mark the center support bearing bracket for reference during installation.
6. Remove the 2 center bearing support bolts.
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To install, tighten to 70 Nm (52 lb-ft).
7. Remove the driveshaft assembly.
8. Clean grease deposits, dirt and rust from the following:
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The driveshaft flange yoke areas.
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All driveshaft slip yoke areas.
9. NOTICE: Make sure that the center bearing is correctly aligned when tightening fasteners or bearing failure and/or NVH issues may
occur.
NOTE: Align index marks made during removal.
NOTE: Install new bolts and retainers.
To install, reverse the removal procedure.
Driveshaft - Rear, Three-Piece
Driveshaft - Rear, Three-Piece
Removal
1. With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to Vehicle Jacking and Lifting.
2. Index-mark the driveshaft flanges and slip joints.