Cronjie

New to the forum here and already need help! Bought a 77 Cutlass Supreme Broughm (sp) and the tires on it are something like P75? The spare is a 215/75 r15. Am needing to replace them. What size should I look for? Thanks, Cronjie

texxas

The modern correct size tire for my 76 442 is a P225 70 15. The biggest tire you can mount on the original 7 inch wide wheels and run on all 4 corners without interference and allowing them to be rotated is a P245 60 15. I think the P215 75 15 may be the correct equivalent for the Supreme. I believe it used a slightly smaller tire than the 442 when new.