Chevrolet Silverado 2004–2007 — technical service bulletin
Bulletin 060417002 · NHTSA communication 10021100 · issued Dec 1, 2006
Technical service bulletin
communication type
Suspension
component
2004–2007
model years
8
vehicle entries
Official summary
Rear drive axle whine noise (replace slip yoke assembly). *kb
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.