All I can say is 360K with no troubles. Engine/ trans /brakes/ electrical all exceptionally reliable. I am religious about maintenance and clean fluids which I believe has paid off. Drives great and very comfortable with seat mounted arm rests and cruise. I would consider no other after the service this vehicle has given me. This vehicle is a 2500, 4.8, 480el, semi floating 8 bolt axle, extended wheel base. It is worked everyday hauling hardwood flooring.
I own a 2005, but the 08' is identical. I own a carpet cleaning business and the van has 1 ton+ of equipment mounted inside. It has had perfect reliability. The Ford is a very old design. The Sprinter was weird, expensive, and underpowered. It also wouldn't fit in my garage. I cheaped out & didn't get PW/PM/PL. Get the power accessories as walking around to unlock the doors is a pain! I think for the money this is by far the best cargo van. One gripe: GM seems to tune their gen-2 small-block V8's for power rather than low-rpm torque. I have the 4.8 w/3.73 axle. With all the weight I'm hauling it's barely enough. You may have to special order it, but get the 4.10 axle if you have the 4.8
The van only has 31,500 miles and i already had to take it to the shop 3 times for repair. I don't think Ill ever get a Chevy again. I also have a Chevy S10 that I had to take to the shop 5 times and it only has 34,800 miles on it. All the repairs are on the electricals.
For a van it handled well and was very comfortable to drive. Overall excellent reliability. A few glitches in the side door hinges and with a couple of the interior lights. Fuel economy varied dramatically by driving habits. Ranged from 12 to 22 mpg city to highway. Drivetrain reliability was excellent, with minimal expenses for maintenance or repairs in about 50K miles.
I bought this van primarily to transport my disabled mother around on weekends. (I had a wheelchair lift unit installed on the side door). It was an attractive choice for me because it's secondary purspose is that it can used as our family's pickup truck. At 10,000 miles I have experienced zero defects. I have found the van to be comfortable and powerful. I loan this thing out to friends and family a lot and get many compliments about how nice it drives. As far as appearance and interior quality, It's a cargo van. I don't expect a luxurious interior and head turning looks. I use this thing to move stuff.