[QUOTE=badone07]On the factory dually rims, my crew cab & chassis, I'm using
Cooper 7.50-16LT SRM all around. Had no problems when it was a flat bed. They are 31.80 inch diameter. When I went to a fleetside bed, I had to add a 2" suspension lift out back because of inner wheel housing rub.
QUOTE]
Thanks, this is the type of info I'm after. Was your truck originally a cab-n-chassis or pickup? Cab-n-chassis trucks have narrower rear ends and a longer wheelbase. I found this out when I considered putting a regular bed on mine.