2020 GMC/Chevrolet Diesel Engine
“The optional engine remains the largely carryover 6.6-liter Duramax V-8 turbo-diesel—445 horses and 910 lb-ft—but is now mated to a 10-speed version of the excellent Allison automatic gearbox, up fro...
Forum Discussion
Huntindog wrote:
As an aside.... I read where many/most 1/2 ton 4 wheel drives are now all wheel drive. No transfer case, and no low range..... This is something that SHOULD be talked about on this forum to bring up the awareness. Back when I towed with a 1/2 ton, low range was certainly used quite a bit when jockeying into a campsite.
I don't think that is the case. They might have automatic 4WD/AWD settings for high range (and hav since the late 90's), but they all have a traditional 4 high and 4 low settings as well. At least the full frame pickups and the suvs based on those designs do.
