front tire diameter

68 fastback
small bolt pattern
going from 14x7 all around to 15x7 front this paycheck and 15x7 or 15x8 next paycheck.
old wheels are 3.25" backspace, new are 3.75" for the 15x7, and the 15x8 are 4.5" backspace.

I'm upgrading to 15" wheels, and I'm looking for information on front tire diameters. After all I've read about how BF Goodrich T/A radials are sticky as a lubed proctologist's finger, I decided not to bend over for that ride.

I almost pulled the trigger on some Mickey Thompson Sportsman S/T tires so I'd have matching front and back. Then I noticed the tire diameter of 215/70/15 came out to 26.85. Will that diameter fit without rubbing when turning or going over bumps etc?

Thanks for the help! :burnout: