Chevrolet Silverado 1999–2006 — technical service bulletin
Bulletin 3009A · NHTSA communication 10008845 · issued Aug 24, 2004
Technical service bulletin
communication type
Suspension
component
1999–2006
model years
14
vehicle entries
Official summary
Suspension vibration or frame beaming at 40 -60 mph. *mj
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.