The 41-46 cabs are smaller, but I dont know if they affect that much due to where they are smaller, definatly more narrow. Im 6' and only about 170. No problem fitting into either sizes of trucks. One thing to think about is defiantly changing the column. If your big or heavy set, the old columns are solid while a newer column has that collapsable part so if you got in a front end accident the chances of you getting your chest crushed would go down substantially. Im not worried about that to much, but if I had a little less room between me and the column I might be. Just a thought.
