Ford F-150 2021–2022 — technical service bulletin
Bulletin 22B34 S1 · NHTSA communication 10240426 · issued Jul 7, 2023
Technical service bulletin
communication type
Power Train
component
2021–2022
model years
2
vehicle entries
Official summary
Certain 2021-2022 Model Year F-150 Vehicles Equipped with 9.75 HD Axle -Float Axle Rear Axle Half-Shaft and Hub Assembly Replacement REASON FOR THIS SUPPLEMENT Technical Instructions: Dealers are to follow the updated inspection procedure found in Technical Information S1 before replacing the axle shaft Mobile Repair and Pick-Up and Delivery information Labor Allowances information Part Ordering Information Owner Letter mailing schedule
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.