Duramax, Allison, Tow-Haul mode advice
We traded the '05 Tahoe in on a new 2013 GMC Sierra 2500HD crew cab with the Durmax diesel, Allison transmission, and HD tow package. We tow a Surveyor Sport 220 that weighs in about 4,400# dry with a...
Forum Discussion
I would not bother with T/H for a 4400 pound trailer. All it is going to do is decrease your fuel economy.
