I put my cab and chassis to work on Nov. 21, 06. It is a single cab, long wheel base, (11. 5 ft. flatbed) with the Aisin transmission. I now have over 70,000 miles on it. I had no problems with it at all for the first 50,000 miles then I started having a no start problem. It took a while (and several dealers) to find it because it was intermittent and wouldn't set a code. When it finally did, the throttle control valve was replaced, and I have had no problems since. The ride is better than on my 03, probably because of the longer wheel base. Mileage is running about 1 mpg less than the 03. Mileage is running about like BVANR, 9-11mpg pulling the trailer, 7500 lbs empty up to 23,000 loaded. The last time a made a run without the trailer, 700 miles, the truck averaged 16. 7 mpg, hand calculated. This is a good dependable work truck.
Keep in mind, this is a cab and chassis, not a pickup model. They are different.