Timely question since I just got new front tires for my car. The old ones were 7yrs old with tons of tread left but they were showing longitudinal cracks between the treads. 25 yr old me would have run them but 58 yr old me likes peace of mind not worrying about a blowout at the track or on the highway. The tires that came on my 20 Silverado (brand new) had to be replaced last year due to the same cracking that resulted in unfixable slow leaks. They don't make them like they used to.
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Chris D
69 GTO Liberty Blue/dark blue 467, 850 Holley, T2, Edelbrock Dport 310cfm w Ram Air manifolds, HFT 245/251D .561/.594L, T400, 9" w 3.50s 3905lbs 11.59@ 114, 1.57/ 60'
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