Certain 2017 through 2020 Model Year F550 Equipped with Payload Plus Upgrade Package-Frame Rail Cracks: In...
Ford technical service bulletin 21B04-S3 for 2017-2020 Ford F-550 SD.
- Bulletin number
- 21B04-S3
- Component
- Structure
- Summary
- Certain 2017 through 2020 Model Year F550 Equipped with Payload Plus Upgrade Package-Frame Rail Cracks: In some of the affected vehicles certain second unit body (SUB) upfits could cause stress points on the frame rail. Over time this stress could cause a crack in the fame rail behind the cab.
Vehicles covered
- Ford F-550 SD 2017-2020 2017201820192020
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