Chevrolet Silverado 1999–2003 — technical service bulletin
Bulletin 00347A · NHTSA communication 10004123 · issued Nov 18, 2003
Technical service bulletin
communication type
Suspension
component
1999–2003
model years
10
vehicle entries
Official summary
Rear spring slap or clunk noise. *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.