General vs Michelin tires (stock size and tread)

Hello, I am putting stock size tires on ORP wheels, I plan on the Michelins but they don't appear to be quite as big as the Generals I've seen on newer 4Runners. Also the size guide that is shared on this forum shows 31.6" OD and my measurement on my friends truck with that tire is 31" OD

Any advice from an owner with the Generals? balance/wear etc.

 

Tires of the same size should be the same size with minimal variation so if you want a General in that fitment, you can count on it being that size.

Could it be your friend's tires are worn more than new?

It's also not clear which Michelin and which General tires you are comparing as they both have a range of models that fit our trucks.