largest reasonable tires for 68 Newport

Hello Mopar People,

I have some new 15 x7 rims for my 68 and was wondering what y'all would advise for the largest reasonable tire size to fit the wheel wells without touching on corners, etc. on non modified rear end/front end etc.

Thanks,
Mike


p.s. Attached old photo for your enjoyment, back when I was a kid with my high school on road off road vehicle ~1983 View attachment 452954 .
Author: Mike McGuire