According to acticle in Trailer Life magazine, quad cab has been increased in length by 3" but bed has been decreased by 3" from 6' 6" to 6' 3". Ram short bed was already about 1" shorter than my previous chevrolet. Why I mention this is for the people that pull 5th wheels. The short bed was already marginal at 5th wheel pulling. I know; get a slider hitch; but that is only to be used in camp grounds not while making tight turns going through towns. I would have to get LB if I were to get a 2003.