Your tires were 1 1/2 years old when you bought them. When I buy new tires I tell the dealer that I want "fresh" tires or no older than 3 months. Towmaster tires were on my new 5th wheel when I was negotating to buy the trailer. I asked the dealer who made Towmaster tires and he said he didn't know!!!!!!!!!!! I told him that I would buy the trailer only if he would put Good Year tires with a min. of 10 ply and "E" rated. I picked up the trailer and had Good year tires but "G" rated. Make me a happy camper:).