Affected Component: STRUCTURE

Date Published
SEP 24, 2021
NHTSA TSB #
10201640
TSB Document
Summary
Certain 2017 through 2020 Model Year F550 Equipped with Payload Plus Upgrade Package ;Frame Rail Crack 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 frame rail behind the cab.