I have the duramax Diesel. I love this truck. I haul a 3 horse gooseneck and never know it's there. Handles great in the snow, gas mileage not bad for a big truck. No problems at all with it. I have had this truck going on 6 months have put 8,500 miles on it and it drives like it did the first day i bought it. I love this truck..
Allision transmission and the 6.6 L diesel. Sound system.
Offer a little more options in the LS. Not everyone wants leather when working with horses. Would be nice to have a DVD player for the kids on long trips.