2013 GMC Duramax 6.6 Diesel with Allison transmission four wheel drive. Only 77k actual mileage. HD 2500 Sierra SLT. New 8 ply tires with only 5K miles on them. It has the towing package, back up camera, heated seats etc. it was used to pull camper a couple of times on short trips. It is in great condition and NEVER used to pull heavy loads. Average mileage between 16-20 mpg. Reason for selling I do not need this truck any longer. One owner, I bought it new. Clean title.