I replaced my 4 tires 3 weeks ago. When one of my front tires needed replacing due to a bad belt, they were 6 years old, I said replace them both. My rears, I got from a member here years ago with the 10" wheels. Date coded them, 17 years old! Replaced them too! I have 2 friends that blew out tires on trips and it tore up stuff that required at least $700 in body work. With the 2600 miles that I just drove in 2 weeks, one thing that I didn't worry about was my tires.