75
The factory size for the 1975 coupe and convertible is: 225/70-15
All the tires should be the same size. If the other tires are in place you should be able to get the size from the other tires. If not the size should be on a plate inside the drivers side door with many other specs.
Wheels : Size 15"x5", Bolt pattern 5x4 3/4 , Back spacing 3 1/2" Tires: P205/75-R15
diagram of motor od 1981 corvette
it is the tires
what could be pulling the battery down in a 1981 corvette
Kindly tell, what is P.C.D of stock Rim of chevrolet caprice classic 1981
No they do not have a spare. They come standard with Goodyear run flat tires.
http://corvette-world.com 178 inches.
It should take p235/75/r15
it depends on what style of 81 corvette, But a doubt it would work.