F 350 4WD Super Duty V8-6.4L DSL Turbo (2008)
10. Clean and inspect the following:
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The seal mounting surface.
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The flange lugs and the flange end that contacts the bearing cone.
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Verify that the flange nut counterbore and the seal contact surfaces are smooth and free of nicks.
Installation
1. Using a suitable driver, install the pinion seal.
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Lightly coat the pinion seal lip with lubricant.
2. NOTE: Never use a metal hammer on the pinion flange or install the flange with power tools. If necessary, use a plastic hammer to tap on a tight
fitting flange.
NOTE: Align the index marks.
Lightly coat the flange splines and seal mating area with lubricant, then install the flange and a new washer and pinion nut.
3. NOTE: Never back off the pinion nut to reduce preload. If preload reduction is necessary, install a new collapsible spacer and pinion nut.
Tighten the nut.
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Use the Drive Pinion Flange Holding Fixture to prevent the flange from turning while tightening the nut. Remove the Drive Pinion Flange
Holding Fixture when taking pinion bearing torque preload readings.
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Take frequent pinion bearing torque preload readings.
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The final reading must be 0.56 Nm (5 lb-in) more than the initial reading taken during removal.
