My tires just came up to the 6 year mark so I had them torn down and inspected by my local Michelin dealer. The steer tires showed some minor cracking so I replaced them for safety sake. The drivers were given a clean bill of health. The current tires are 295/80R/22.5 but I replaced the steer tires with 315/80R/22.5 for two reasons. They have a load range J and the 295's are load range H. The 315's were $45.00 cheaper than the 295's but the FET was a little higher. I'm currently on a trip to YNP and I have to say I'm really impressed with the difference in handling with the 315's over the 295's. I realize the 315's are just a little taller and a shade wider but the handling difference is certainly notable. The original steer tires could have been worn some but not that badly at 29K miles. Using the Michelin Tire Advantage Program I saved about $285 with the new steer tires.