Three problems related to axle shaft seal have been reported for the 1997 Ford F-150. The most recently reported issues are listed below.
While driving would step on brakes and left rear tires locked. Consumer was told that defect on vehicle had been rear axle seal that when raining could lock up. Consumer states that affected brakes were saturated with lubricant and would do nothing when activated.
Transmission seal failed.
Rear axle seal failed, caused differential to leak and contaminate brake drum.