15x10's

[scottofksu]

I have always started with the tire size I want to fit based on the use model of the vehicle. For example, to run 35's on my 2012 Jeep Wrangler all the way around and without rubbing lock to lock on the steering or to run as wide a rear tire as I can on my '65 C10. Width of the tire dictates rim width and total targeted height of the tire - as either the final step of my gearing puzzle (i.e., C10) or based on the ground clearance I am wanting (i.e., Jeep). I then take my tire width and compare it to the wheel-well and measure to see what backspacing I need for the space available to center the wheel - mostly an issue on my truck and other vehicles without wide open wheel-wells like my Jeep. As a rule of thumb I want the wheel as centered above the hub for the sake of front and rear bearings and front ball joints given that backspacing acts as a lever that can torque these components to an early death.

Based on the information you provided, I would say a 10" rim is about right for the tires you want to run as they are generally good up to 295mm of tire width. 15 inches in height might impact the types of brakes you can run. I believe the starting point for backspacing for this vehicle would be around 4.5" but I would personally measure to confirm first. It's been a couple decades since I ran a tire shop... LOL