[SeeSharp]

I stopped at a Firestone Tire dealer and the guy told me the belts were separating on the Steel Radial 500’s I was using.

Well I bet so. That tire nearly bankrupted Firestone. They were unsafe and they all had to be recalled. They had sold tons of the 500's to Sears with Sears branding and those had to be recalled also. 60 minutes even did a piece on the infamous Firestone 500.

[technically right]

I bought a new Pontiac Grand Prix in 1974. It had Firestone 500’s. All 5 (full size spare back in those days)separated within 20,000 miles.

Those origianl Cannonball Baker runs were some great reads in C&D Magazine. As I recall Dan Gurney won one of the things in a Ferrari.