[Flying Dutchman]

We have a 2014 3582RL 40' and we shredded one of the original 10 Ply Trailer King tires in 2019. It failed without warning. In fact ithey looked great; plenty of tread and no visible cracks. Turns out though on closer inspection that there were cracks visible inside the threads, hidden from view. Along the way we learned that the tires combined were rated 600 lbs below the gross weight rating of the fifth wheel. Keystone's answer to that was that not all the camper's weight is loaded on the tires, so it's deemed sufficient. Well we upgraded to 14 Ply rated tires anyway, but going forward we are sticking to replacing then every 5 years regardless. It's low cost insurance.

Besides that (first) incident, we've had a myriad of tire troubles. Mistake nr 2 was that we didn't get a new 14 Ply spare when we teplaced the set. When we headed out on the next trip, we hit a steel spike that promptly deflated one of the new tires. Our TPMS alerted us in time to avoid damage. Out comes the spare (the old 10 Ply) and we figured we should be able to make it to the next 180 miles to our destination. Wrong! That tire shredded also without warning and blew open the side of our camper, plus it knocked the valve stem off the new 14 Ply tire behind it. We were down and out with three flat tires late at night way up in northern Minnesota. Thank goodness Highway Patrol was kind enough to call around and get us the help we needed.

We also had two new tires on the truck go out last summer. On one the valve stem failed. On the other one the cords simply delaminated after we drove through Death Valley It was 119⁰F there so that may have played a roll.

Moral of the story... don't skimp on tires. Get the best ones you can afford to get.

Safe travels my friend.