F 450 4WD Super Duty V8-7.3L DSL Turbo VIN F (2001)
Setting pinion depth
5. CAUTION: Whenever the cups are replaced, the differential pinion beatings must also be replaced.
Make sure the cups are properly seated in their bores.
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If a feeler gauge of the specification shown in the illustration can be inserted between a cup and the bottom of its bore at any point around the
cup, the cup is not properly seated.
