Rich,
50% of the year I run winter tires. 50% of the year I run summer tires. From 2002 to 2005 my winter tires were Bridgestone Winter Dueler DM-Z2 and the summer tires were Goodyear Wrangler RT/S. The Goodyear tires had wear problems. The Bridgestone didn't. In 2005, I replaced the Goodyear tires with BFG Radial Long Trail T/A tires. After over 1 year, still no abnormal wear.
So, during the time I had my Goodyear tires, I ran Bridgestone tires during the winter months. No abnormal wear on the Bridgestone tires, but wear on the Goodyear tire. Same air pressure.
It isn't the tire? Same vehicle, same shocks, same alignment, same air pressure, same roads, different wear. The only difference was the tires.
So what was the problem? Was it my truck? Did it know what tires were on it and adjusted itself to wear the Goodyear tires, but doesn't do the same with the Bridgestone?
Sorry, I say the Wrangler tires are crap and my situation proved it to me. Two different tires, same vehicle. The Goodyears were crap and the Bridgestones werent.
There is no other explaination.
Tom