Ford F Series 1997 — technical service bulletin
Bulletin BC3172970217 · NHTSA communication 51787 · issued Feb 17, 1997
Technical service bulletin
communication type
Suspension
component
1997
model years
1
vehicle entries
Official summary
Clunk/grunt noise on 5.4l f-series 3.55 limited slip axles. *tw
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.