F 250 4WD Super Duty V10-6.8L VIN Z CNG (2003)
17. CAUTION: The special tool must be used due to tight spline fit.
With the drive pinion in place in the axle housing, install the pinion flange using the Companion Flange Replacer.
18. Position the new pinion nut.
19. CAUTION: Under no circumstances is the pinion nut to be backed off to reduce preload. If reduced preload is required, a new collapsible spacer
and pinion nut must be installed.
Use the special tool to hold the pinion flange while tightening the pinion nut.
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Refer to the torque specification for new pinion bearings.
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Tighten the pinion nut until the desired rotational torque is reached.
20. install the differential case.
