F 450 4WD Super Duty V8-7.3L DSL Turbo VIN F (2001)
9. CAUTION: Align the differential assembly within the bearing bores before applying preload or damage to the bearings will result.
Install the differential bearing adjusting rings.
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Tighten both adjusting rings until there is zero end play, and some backlash between the differential ring gear and pinion. Make sure the
adjusting ring tooth aligns so that installation of the adjusting ring lock is possible.
10. Set the backlash at zero.
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NOTE: The adjusting ring tooth must always align so that installation of the adjusting ring lock is possible.
Loosen the adjusting ring on the tooth side of the differential ring gear one tooth and tighten the opposite adjusting ring one tooth. Repeat this
process until backlash is at zero.
11. Set the backlash and the bearing preload to specifications.
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With a new matched set installed, set the backlash to the specification etched in the differential ring gear.
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With the original matched set installed, set the backlash to the specification recorded prior to disassembly.
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NOTE: The adjusting ring tooth must always align so that installation of the adjusting ring lock is possible.
Tighten the adjusting ring on the tooth side of the differential ring gear until backlash is within specifications.
