My tires are Goodyear GT4. Made in 2000. They were store off the ground and look like new. No cracks or wear. I've been riding on them almost 2 years now with no issue. Love my Goodyear.
My 1969 300 vert has 235/75/15 radials and I have to jack up the body to get them on and off. Once installed there is plenty room for a little wider but not going to change them