Transmission, automatic, 4 speed, HMD, 4L80-E, heavy duty

Years 2002–10 Models 2 Factory citations 11

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Also described as Transmission, automatic, 4 speed, HMD, 4L80-E, heavy-duty

Also documented for Chevrolet

Documented applications

Savana — GMT610 (2003–2027)

2006–2010 Factory-verified

GM factory document — 2006 gmc savana rpo code list, p.1.
GM factory document — 2008 gmc savana rpo code list, p.1.
GM factory document — 2008 chevrolet ld electricalfullsizevans, p.15.
GM factory document — 2009 gmc savana rpo code list, p.1.
GM factory document — 2009 chevrolet ld electricalfullsizevans 100813, p.13.
GM factory document — 2010 chevrolet gh van elec 1 7 d1 100813, p.13.

Yukon — GMT800 (2000–2006)

2002–2006 Factory-verified

only in: Yukon XL 2500; Wikipedia (Chevrolet Suburban) names it for the 2500 with the 6.0L

GM factory document — 2002 gmc yukon 2wd rpo code list, p.1.
GM factory document — 2003 gmc yukon 2wd rpo code list, p.1.
GM factory document — 2004 gmc yukon 2wd rpo code list, p.1.
GM factory document — 2005 gmc yukon 2wd rpo code list, p.1.
GM factory document — 2006 gmc yukon 2wd rpo code list, p.1.

This page aggregates every documented appearance of MN8 in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.