The tires that are on the car currently are 205/70R14 and they look smaller (aspect ratio) than the original tires that came with the car (7.50-14). When I look at charts, the 7.50-14 size translates to either 205/70R14 or 205/75-R14.

Would 205/75 get me where I want to be? Should I go with 215/75 or 215/80?

I need something meatier than what I have. The tires on the car are over 20 years old and they are in dire need of getting replaced. I need a size that matches what the original tire was.

What size tires do you run on your behemoth Zenith cars??

Below is the original spare from 1963