Bumpy ride......

[Class of 69]

I've always rotated radials side to side. Any separation problems, such as the pictures on here is due to defects, or too low a pressure. I personally believe major manufacturors sell seconds to stores such as Costco among others, and have an agreement with them that there is no "manufacturor" warrenty.. therefore I only buy tires from the name brand store. My experience in the tire business says Bilgewipers blow out on the van is from overheating due to overloading or too low pressure. He's very lucky the tread didn't let go completely, or there would have been body damage also. The bulge on the wide base tire is most likely due to a puncture some where in the inner liner, either from an old patch that didn't seal, or a new hole he wasn't aware of. The air got under the liner, found a weak spot, and separated the plies.