that99_kummins

So I have a 99 3500 and I have a dually bed for it don't have use for my flat bed and was wanting to put a dually bed on it i have already got the width of the axle lengthened out more so if the bed was on it would look good. But is there a way we're I would put the bed on and it will line up I know I have to make my own brackets but is there any way I could put the bed on without having that 4in gap??