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July 13, 2021 Service bulletin

All of the affected vehicles were built with front spring and front gross axle weight rating (FGAWR) below...

Ford technical service bulletin 21B42 for 2020-2021 Ford F-350 SD, 2020-2021 Ford F-550 SD and 2020-2021 Ford F-450 SD and others.

Bulletin number
21B42
Component
Equipment
Summary
All of the affected vehicles were built with front spring and front gross axle weight rating (FGAWR) below the customer expected value. The marketing Order Guide stated that on units equipped with Ambulance & Wrecker packages, customers would get up to 7000 lb front spring FGAWR. The front coil springs were built to match the FGAWR labels on these units. The customer did not receive the front coil spring capability they were expecting based on the data in the marketing Order Guide and their reserve capacity might be lower than expected.

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