My Dad has a mid-80's GM chassis motorhome that has a set of Alcoa wheels on it and a near new set of tires. I was wondering if there are adapters available to use these on my dually? The front wheel shows 5 lugs and the rear wheels have 10 lugs.

Any way I can get these on my truck? Just wondering if this is a viable alternative to spending $700 for a new set of tires that the truck needs, or spending about the same oney to make these work.