Chevrolet Silverado 2005–2006 — technical service bulletin
Bulletin 3958 · NHTSA communication 10020577 · issued Oct 4, 2006
Technical service bulletin
communication type
Service Brakes, Air
component
2005–2006
model years
4
vehicle entries
Official summary
Rear drum brakes excessive wear, drag, and aggressive. *kb
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.