I recently upgraded my wheels and tires on my 74 Chevy G10. I went BFG 245/60/15 in the front and 275/60/15 in the rear on 8" US Mag slot wheels all the way around.

Now I need a spare tire and wheel. I believe I should match the height of the front? I'd like to not spend a ton on a wheel and tire, but I'm unsure how to match the height of a 245/60 with a cheaper, narrower tire. What do you suggest?

Thanks for the help!