I think there has been some confusion generated in this thread. There were heavy duty trucks that had 5 studs on the front and 10 on the back. The rims were centered by the hub and they had a round plate that went on the outside of the wheel. The lug nuts bolted up against the plate. This was for strength.
Your 1 Ton has rims that are centered by the lug nuts. You can buy spacers that are made of metal, to go between the back of the rim and the hub or drum. Most of us would not recommend that from a safety point of view. You would also want to make sure that there was still enough length in the stud.