Ford F Super Duty 1999 — technical service bulletin
Bulletin 6650 · NHTSA communication 610721 · issued Jul 1, 1999
Technical service bulletin
communication type
Suspension
component
1999
model years
2
vehicle entries
Official summary
Some vehicles built from job 1 to 5/5/1999 may exhibit a squeaking noise emanating from the front springs. *tt
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.