Chevrolet Silverado 2001–2006 — technical service bulletin
Bulletin 3083 · NHTSA communication 10009506 · issued Oct 4, 2004
Technical service bulletin
communication type
Power Train
component
2001–2006
model years
12
vehicle entries
Official summary
M74 allison lct1000 pto gear applications. *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.