This is absolutely the best truck I have ever owned. It has the vortec 350 engine, auto, 2 wheel drive and single rear axle. I originally got this to haul a 36' bumper pull camper trailer. It did with no issues. I have hauled fifth wheels up to 40' and bobcats I rented with no problem. With 105,000 on it now it is still better than anything I test drive to replace it. Gas mileage is not bad unless its fully loaded. Other than regular maintenance all I have done is replace an AC compressor. Every time I think about getting something different,I just drive it to the dealer , look at the sticker and fall in love with my truck again.