[DrDuc]

Took the wheel/tire off and down to Discount Tire I went. They had a new one in stock, no questions asked (but also no answers) and it's back on the car,good as new. The sidewall looks like it blew out but as I drove a bit to get to a safe spot, the sidewall was cut all the way around. At least I was only going 45 mph when I noticed it. The 15 inch tires are only running at 24 psi with so little weight on them. I don't know how that affects heat buildup. Hopefully this is the last problem for a while.