Tire Tread/belt problems of the 1996 Chevrolet K1500

While traveling on the highway at approx. 70mph, the tread on the rear driver side tire separated rapidly, resulting in complete destruction of the tire. After installing the spare and returning home, I inspected the other three tires which all have distinct cracks forming at the tread/sidewall corners. On one tire, I can actually see the steel belts between the cracks.

Tire tread separated on firestone firehawk tires. (claim# 43-r514-616).

While driving about 74 mph right rear tire (firestone dualer 256/16) experienced tread separation, causing consumer to lose control of vehicle and crash into guardrail head on, the passenger was thrown into drivers side sustaining injurie. , this was the third tire that had problems with. Tire was turned over to firestone for inspection contact person is james e crahan p. O. Box 18006, kansas city, mo 64133 ph-816-358-6111.