Differential fractures could potentially result in wheel lock-up.

Power Train — Driveline — Differential Unit

Summary
On some manual transmission trucks equipped with the FX4 package, the rear axle differential case could fracture under a high torque event such as when customers accelerate rapidly from a stop or when a spinning tire suddenly gains traction.
Actions
Dealers will replace the rear axle assembly. Owner notification began March 29, 2002. Owners who take their vehicles to an authorized dealer on an agreed upon service date and do not receive the free remedy within a reasonable time should contact Ford at 1-800-392-3673.
Documents (6)

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Date Announced
FEB 04, 2002
Vehicles Affected
1,096
NHTSA Campaign #
02V035000
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