I am trying to decipher some of the order codes for a 3500HD Denali DRW. What does the truck come with and are the following listed below all available options for this truck or is it restricted to 17" only? I was surprised to see a 265/17 size?

Model TC30743 2WD Crew Cab Standard Box with Single rear wheel
Model TK30743 4x4 Crew Cab Standard Box with Single rear wheel
Model TC30903 is now available in a dual rear wheel configuration
(LML) Duramax 6.6L Turbo Diesel V8, B20-Diesel compatible engine
(LGH) Duramax 6.6L Turbo Diesel V8, B20-Diesel compatible engine (requires [ZW9] pickup box delete)
Exterior color (GGU) Gray Green Metallic
(K40) Exhaust Brake
(PYW) 17" (43.2 cm) painted steel wheels
(PYT) 18" (45.7 cm) painted steel wheels
(P06) Chrome trim skins and chrome center caps wheel trim
(PYR) 18" (45.7 cm) forged polished aluminum wheels
(QQO) LT235/80R17E highway tires
(QZT) LT235/80R17 all-terrain blackwall tires
(QWF) LT265/70R18E all-season, blackwall tires
(QGM) LT265/70R18E all-terrain, blackwall tires
(ZQO) LT235/80R17E highway spare tire
(ZZT) LT235/80R17E all-terrain, blackwall spare tire
(ZWF) LT265/70R18E all-season, blackwall spare tire

My understanding is that the DRW's are a 17" wheel only.

My understanding is that the DRW's are a 17" wheel only.
X2

got it, my guess is they come with either Michelin All Terrain or Michelin Highway?

(QQO) LT235/80R17E highway tires
(QZT) LT235/80R17 all-terrain blackwall tires

Made a list in this thread:

http://www.dieselplace.com/forum/showthread.php?t=390331

There should be one more dually tire not sure what though.

Could also be goodyear. mine is ordered with the QZT option, should be built for the 2 nd time next week.

yeah i think a/t is micheling and h/t is goodyear

I saw on the order sheet I have Code QQO listing

LT265/70R/17 BW All Season. Doesn't seem to comply with the QQO code listed above, 265 seems like a good choice for the tire size, maybe a little big? 2011 F450 has a 245.

yeah i think that's an error but I could be wrong..initially on the duallys all you could get is a 235/80r17 which isn't far off from 265/70/17

(QQO) LT235/80R17E highway tires
(QZT) LT235/80R17 all-terrain blackwall tires

These are the only two choices for a 2 or 4wd DRW according to GM. No other options available as of right now. My info is coming straight from the Dealer's site that they place their orders with GM on.

Moved to New Vehicle Information.