Tire/Rim Help

I was considering a 35x12.50x15 tire mounted on a 15x8 rim with 3.25" of backspacing

or

a 15x10 rim with 3.625" of backspacing. Any thoughts? I would like to tuck the tire in the well as much as possible without creating any rubbing problems. Thanks for the help.

 

[Redrig]

from the research ive done id say 3.625

 

[Robb]

I would go with a 15x8, but I would look for a BS around 3.75.

btw: Welcome!