Ford F-250 SD 2008–2009 — technical service bulletin
Bulletin TSB-09-4-9 · NHTSA communication 10029305 · issued Jul 1, 2009
Technical service bulletin
communication type
Wheels
component
2008–2009
model years
4
vehicle entries
Official summary
Ford: some vehicles with single rear wheels and dual rear wheel may exhibit an excessive drive away shudder or vibration under moderate to heavy acceleration from a stop, especially when heavily loaded. *pe
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.