First of all thanks for the Website it helped me decide on buying my Duramax. I've had it for 8600 miles and 4 months. The only problem is the master cylinder leaks but works good. I've had to pull stalled cars out of traffic and I couldn't tell they were back there. My whole family loves the truck. Its a 4 door crew cab long bed. In the past four months I've had over 12 Ford Power stroke owners including the manager of the Kenworth dealership in Dallas stated he wished he had waited for the Duramax instead of buying the Power Stroke. I had a shop teacher in Post Texas tell me his 6 cylinder dodge works real good but wish he had the Duramax cause its much quieter but he gets real good gas mileage on his dodge. I get about 650 miles out of a 34 gallon tank on the long bed, a little less on the 27 gallon short bed. A real comfort for the kids is the folding back seat in the crew cab. Some people ask why get the long bed and I say How long is a piece of 4 X 8 Plywood or a ! 2 X 4?