Darsben...thanks for your suggestion. After I got back yesterday, two experienced fifth wheelers told me to get LT tires. I was going to post a question on that today, so you just answered it for me. This is unbelievable, but I actually owned this exact fiver 5 years ago, I was first new owner on it. At that time, when I weighed it, it was 8600 lbs fully loaded as live in it full time. The tire size is ST 225/75R15. Goodyear Marathons, China, dated 1012 are on 2 of the wheels now. Will replace all 4. Can I use the newest one, ST Gy, if I go with the LT?
Any suggestion, brand?