Transmission, 5-speed manual, New Venture Gear 109 mm, 5.61 first gear

Years 1995–08 Models 4 Factory citations 22

Also described as Transmission, manual, 5 speed, New Venture GearTransmission, manual, 5 speed, New Venture Gear, 109 mm, 5.61 first gear, overdrive

Also documented for GMC

Documented applications

C/K pickup — GMT400 (1988–2000)

1995–2000 Factory-verified

M50, MG5 and MW3 print the same wording

GM factory document — 1998 chevrolet chevy c pickup 2wd rpo code list, p.1.
GM factory document — 1999 chevrolet chevy c pickup 2wd rpo code list, p.1.
GM factory document — 2000 chevrolet chevy c pickup 2wd rpo code list, p.1.
GM Heritage factory kit — 1995 Chevrolet Truck, p.9.
GM Heritage factory kit — 1996 Chevrolet Truck, p.16.
GM Heritage factory kit — 1997 Chevrolet Truck, p.37.

Silverado — GMT800 (1999–2007)

1999–2007 Factory-verified

2005–2007: heavy-duty models only (GM’s HD list)

GM factory document — 1999 chevrolet chevy c silverado 2wd rpo code list, p.1.
GM factory document — 2007 chevrolet silverado classic 2wd rpo code list, p.1.
GM Heritage factory kit — 2000 Chevrolet Truck and Silverado, p.57.
GM Heritage factory kit — 2007 Chevrolet Silverado, p.60.

Silverado HD — GMT800 (2001–2007)

2001–2007 Factory-verified

GM factory document — 2001 chevrolet chevy c silverado 2wd rpo code list, p.1.
GM factory document — 2002 chevrolet chevy c silverado 2wd rpo code list, p.1.
GM factory document — 2003 chevrolet chevy c silverado 2wd rpo code list, p.1.
GM factory document — 2004 chevrolet chevy c silverado 2wd rpo code list, p.1.
GM factory document — 2005 chevrolet chevy c silverado 2wd rpo code list, p.1.
GM factory document — 2006 chevrolet chevy c silverado 2wd rpo code list, p.1.
GM factory document — 2007 chevrolet silverado classic 2wd rpo code list, p.1.
GM Heritage factory kit — 2001 Chevrolet Silverado HD, p.62.
GM Heritage factory kit — 2002 Chevrolet Silverado HD, p.41.
GM Heritage factory kit — 2005 Chevrolet Silverado 2500HD, p.195.

Silverado HD — GMT900 (2007–2014)

2007–2008 Disputed

printed in the 2007–2008 lists only; disputed: the 2007 and 2008 new-body Silverado lists print it in the heavy-duty half, but that half repeats the 2007 Silverado Classic heavy-duty list (same codes, same order) and no other source names the GMT900 HD gearboxes, so it may be a Classic carryover; GM Authority's LMM engine page pairs the 2007.5–2010 LMM with the Allison 1000 automatic or a ZF S6-650 6 speed manual, neither of which is this code; both readings kept

GM factory document — 2007 chevrolet silverado 2wd rpo code list, p.1.
GM factory document — 2008 chevrolet silverado 2wd rpo code list, p.1.

This page aggregates every documented appearance of MW3 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.