I just got these sweet new rig yesterday. It is a 2007, 3500HD. I needed to trade in my 1/2 ton for something that would tow the travel trailer we bought. I was looking for a 3/4 ton and came across this beast. Total overkill for what I need it for but who am I to complain. It is fully loaded, all the bells and whistles. Duramax w/Allison tranny, the only thing it doesn't have is the kitchen sink. The previous owner also installed a reversible tow ball in the bed for a gooseneck trailer and CB antenna. The best part is that it only has 17,000 miles on it. Basically brand new, not even broken in. I got it for half of what they go for new. I am so stoked. Behold my new love.