SSM 47903

SSM 47903 - 2018-2019 F-150/F-Super Duty/Transit - Rear Axle Pinion Seal
Fluid Leak/Seepage
Some 2018-2019 F-150, F-Super Duty, and Transit vehicles may exhibit the appearance of a fluid
leak or seepage from the rear axle pinion seal. The appearance of a fluid leak or seepage on a
vehicle with less than 500 miles or less than 3 months in service may not be due to a failed rear axle
pinion seal. The appearance of fluid around the seal may be from the axle assembly being shipped
to the vehicle assembly plant with the pinion facing down. To determine if a leak is present, clean the
seal area of any residual lubricant and visually inspect the pinion seal for leaks or damage in the
seal contact area or dust slinger on the pinion flange dust shield. If no concerns are found, run the
vehicle on a hoist in DRIVE at idle speeds for 10 minutes to allow the fluid to circulate and recheck
for signs of leakage.
APPLICABLE VEHICLES
2018 - 2019 TRUCK: F-150
2018 - 2019 TRUCK: F-SUPER DUTY
2018 - 2019 TRUCK: TRANSIT