Ford offers wheelbases all the way up to a 195" wheelbase. I wish mine was longer.I have a 138" wb, with a 12' box on it.A friend of mine just bought a DRW Ford, 195 wb, with a 17'6" inside length.Easily can be converted to a SRW, just by changing the rims.And changing the front rims, along with taking the rotor extenders, or whatever you call them, off.I think a Ford is heavier than a chevy on the front just because of the twin I-beam front setup.The 5.4 engine has more than enough power.I know mine runs like a scalped chicken, anyway.I am surprised the rear swing doors are not more popular.A big weight savings, and a lot quieter.But it is a real nice looking and built van, I saw one at that Expedite shin dig in Monroe a few months ago.I loved it.If I remember right, the DRW version does not change the inside space between the wheel wells, but they, the tires, stick out a little further.I can't tell you how much of an improvement side windows make for ventilation and air cross-flow when parked.Makes such a difference on the inside temperature, more tolerable.Makes not running the a/c a lot more feasible.