TSBs

Applying grease to Ford shaft spline area

Sept. 16, 2024

Some 2018-2020 Ford Expedition 2WD vehicles may exhibit a clunk noise from the driveshaft area when shifting from reverse to drive or drive to reverse and/or during coast down.

Motor Age Staff

Related To: Mitchell 1

Apply a light coat of grease to both sides of the anti-ting washer.

Apply grease to the entire shaft spline area. Avoid placing grease into the treaded hole.

Some 2018-2020 Ford Expedition 2WD vehicles may exhibit a clunk noise from the driveshaft area when shifting from reverse to drive or drive to reverse and/or during coast down.

This condition may be caused by a slip/stick condition at the transmission output flange/anti-ting ring interface. To correct the condition, apply a light coat of Motorcraft high-temperature grease to both sides of the anti-ting washer and to the output shaft splines.

Motorcraft high temperature grease.........XG-11

Driveshaft flange bolt......................N811880-S100

Transmission output shaft flange bolt.....HL3Z-7N134-C

About the Author

Motor Age Staff

Motor Age has been publishing technical content for professional automotive technicians since 1899. Our writers have decades of experience and scores of ASE certifications, and they continue to teach new generations of technicians via classrooms all around the globe, as well as through the books and training manuals they've authored.