Question on wheel/tire sizes for stock 71 c10

[cmarino929]

Hi everyone - new C10 owner. I have a 1 owner completely stock original c10 long bed custom- 3 on the tree, 307, front disc brakes. Learning as i go but its a wonderful truck.

I really love the plain looking slots wheel and tire size setup on the one from the dazed and confused Cheyenne movie truck but i have no idea what size they are. I am thinking they are a 15" rim (maybe 15x8.5?) but im no expert and I know that 14" slots won't fit my truck as i tried (wouldn't clear the brakes).

If anyone has any idea what the rim size and tire size would be on this truck I would greatly appreciate it!

This is the truck for reference:

https://www.imcdb.org/vehicle_26098-...enne-1972.html