Transfer case, manual shift, 2-speed

Years 1999–08 Models 4 Factory citations 14

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Also described as Transfer case, manual shift control, 2 speedTransfer case, manual shift control, two speed

Also documented for Cadillac Chevrolet

Documented applications

Sierra — GMT800 (1999–2007)

1999–2007 Factory-verified

GM factory document — 1999 gmc gmc c sierra 2wd rpo code list, p.1.
GM factory document — 2007 gmc sierra classic 2wd rpo code list, p.1.

Sierra HD — GMT800 (2001–2007)

2001–2007 Factory-verified

GM factory document — 2001 gmc gmc c sierra 2wd rpo code list, p.1.
GM factory document — 2002 gmc gmc c sierra 2wd rpo code list, p.1.
GM factory document — 2003 gmc gmc c sierra 2wd rpo code list, p.1.
GM factory document — 2004 gmc gmc c sierra 2wd rpo code list, p.1.
GM factory document — 2005 gmc gmc c sierra 2wd rpo code list, p.1.
GM factory document — 2006 gmc gmc c sierra 2wd rpo code list, p.1.
GM factory document — 2007 gmc sierra classic 2wd rpo code list, p.1.

Sierra HD — GMT900 (2007–2014)

2007–2008 Disputed

printed in the 2007–2008 lists only; the 2009 list prints NQG disputed: the 2007 and 2008 new-body Sierra lists print it in the heavy-duty half, but that half repeats the 2007 Sierra Classic heavy-duty list (same codes, same order) and no other source names the GMT900 HD gearboxes, so it may be a Classic carryover; both readings kept

GM factory document — 2007 gmc sierra 2wd rpo code list, p.1.
GM factory document — 2008 gmc sierra 2wd rpo code list, p.1.

Yukon — GMT800 (2000–2006)

2000–2002 Factory-verified

the 2000 list words it as a full-range transfer case

GM factory document — 2000 gmc yukon 2wd rpo code list, p.1.
GM factory document — 2001 gmc yukon 2wd rpo code list, p.1.
GM factory document — 2002 gmc yukon 2wd rpo code list, p.1.

This page aggregates every documented appearance of NP2 in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.