If you guys are done hijacking this thread, I would like to comment on "payloads", which was mentioned earlier. Did you ever study advanced math? I remember learning years ago about something called "the square root of minus one." (Don't try to figure it out; it can't be done.) It was referred to as an "imaginary number" and I don't even remember now what it was used for. Well, that's exactly what the payload numbers are that you read in the brochures and websites and other advertising media. These numbers are created by the marketing geniuses in an attempt to make their brand of vehicle look better than the competition. They create a so-called empty or curb weight and subtract it from the GVWR to come up with a "payload" number. These empty or curb weights are impossible to replicate in a "real" vehicle.
The only way to ACCURATELY determine your payload is take your vehicle and load it up with all of the "stuff" you normally carry; your food, clothes, bedding, microwave, TV, DVD player, cooler, load bars, cargo straps, repair parts, and EVERYTHING ELSE that you normally carry on the road. Then, fill your fuel tank--full, put your warm body in the driver's seat (and your co-driver in the passenger seat if you normally run as a team), and put the vehicle on a scale and get it weighed. Take that scale weight and subtract it from the GVWR and you will have your LEGAL payload.