You guys are playing roulette with your life and your prized Mopar's running tires over 4 years old I had a set on a B-Body that were 10 years old with all their tread, On the way to a Mopar show in Phoenix the driver side front BFG threw a chunk of tread off the tire about the size of a softball and about destroyed the front fender. NEVER AGAIN will I run old tires on anything.Don't gamble with your life on old tires