For what its worth, I have 700 16 on the front and 750 16 on the back of my truck. I have a 48 body but a 52 frame. Also a 1/2 ton. Not on the road as of yet but I have been driving around the yard and driveway with no problems. Also on factory wheels.

For with God nothing shall be impossible. (Luke 1:37)
http://s224.photobucket.com/user/72cj351/library/48-52?sort=2&page=1
Paul