How many of us are there? Owners of Dodge based RV's?

Not sure if I am in the right place to ask this question, but here goes.
I have a 76 Dodge RV with 8x16.5 tires. I am wondering if anyone would know if the 8x16 rims from a mid 90's Ford would fit on this vehicle. With the price of the 16.5's I would really prefer to switch to 16's, and I found a great deal on the full set of 6 tires on a Ford at the local scrap yard. The lug pattern looks the same but I am concerned that something may be different and not work out. Any ideas would be appreciated.