I BOUGHT NEW GMC SIERRRA IN MID 2004, TRUCK EQUIPPED WITH GOODYEAR WRANGLER ST. TRUCK EXHIBITS VERY POOR WET TRACTION AND EXCESSIVE TIRE WEAR. WHEN TIRE WAS APPROXIMATELY AT 18,000 MILES HAD SERIOUS SPIN OUT ON I75 SOUTH OF TAMPA IN LITE RAINY CONDITION. SINCE THEN NOTICED TIRE SPIN ON SLIGHTEST WET ROADS, EVEN HAS TROUBLE PULLING OUT OF CAR WASHES. THIS IS DANGEROUS TIRE AND SHOULD NOT BE INSTILLED ON LARGE VEHICLES. TIRE IS DOWN TO WEAR MARKS AND ONLY HAS 28000 MILES. TIRES HAVE BEEN ROTATED AND MAINTAINED ONLY BY GM DEALERS. GOODYEAR DEALER STATES THIS TIRE SHOULD NOT HAVE BEEN INSTALLED ON FULL SIZE TRUCKS, IT WILL WEAR EXCESSIVELY AND MAY LEAD TO BLOWOUT. DEALERSHIP WON'T DO ANYTHING AND GOODYEAR STATES IT IS NOT COVERED BY WARRANTY BECAUSE IT WAS ORIGINAL EQUIPMENT INSTALLED BY MANUFACTURER. *TR