Just want to share a recent experience. My son was driving my 75 Cordoba with 15 year tires to his wedding for photo session. Tires are 245 60 15 TA tires. Driving 80 miles per hour the complete tire treed came off causing the vehicle to turn toward a wall, after recovering from a near miss on a Denver I-25 in heavy traffic he was able to continue to the nearest exit. Left front fender lower sections are bent, rocker panel trim piece was rippled off. My point is I was planning to purchase new tires, but with winter coming a normally pace the b-body in storage. Take warning "Do Not Trust your ride to old tires". Note photo of tread on right side was the same on the left side.