Does any one have the gm 4500 cub van configureation with the walk thru door? I don't need the weight carrying cababilty but was thinking of the flip open hood, better viewing and roomeier cab which you don't really get in the gm 3500 or the ford e350. I was just woundering if any one is running them and if your ar are they much harder to drive as far as being longer comparing it with a 15' body .