I would replace all three. The issue is not with the tread, it's with how the rubber hardens, and they cracks. If you see even small cracks on the outside, it's pervasive throughout the entire tire. Nobody ever wears the tread off of an RV tire (unless they are fulltime travelers), the tires wear out from age.Whoa! I just checked the sidewall for the date and it read: 4910. Yikes!
that means it’s original to the trailer. Granted, the first owners (Mr & Mrs Good) didn’t use the trailer much due to Mrs Good’s health. But the second owner took it on some pretty lengthy trips. Regardless, I’ll be looking to have new tires installed this week. What do you think of Goodyear Endurance tires? Any other tips on dealing with tire shops is appreciated as well. Should I buy three even if the spare was never used?
I cannot over-stress enough the importance of a torque wrench!! I had a HUGE 5th wheel (48 foot) that was required to be taken back to the factory due to an engineering flaw. (The entire roof had to be replaced)
On the trip out there, the delivery driver (supposedly a professional) decided to "make sure the lug nuts were tight", using a breaker bar and a socket. Apparently he over-tightened most of the lugs. About an hour after he tightened the lugs, two, of the three wheels on the drivers side came off of the trailer at 75 miles an hour. Ironically it happened in front of a state trooper. When the trooper called me, she stated "When tires this size come off at that speed, someone usually dies.... everyone was very lucky today..."
That being said, pay CLOSE ATTENTION to the torque values on your wheels. Most people are not aware that the axle manufacturers do not publish torque values for aluminum wheels. The only torque values the MFG will give is for steel wheels. Torque values for aluminum wheels come from the RV mfg'r, and not the axle mfg'r.
Lastly, I strongly suggest never running a trailer tire longer than 4 years. Countless trailers have been totaled when they come apart. They call them "China Bomb's" for a reason.
5 to 7 years is good advice. 4 is over cautious. I never used a tourqe wrench. I never seen a tire shop use them eaither. Curious on how tires that were tightened too much fall off?
Maybe because they dont make them for 12 and 13 inch wheels. So most pups have smaller tires and dont have a choice. I think they just added the 14 inch ones recently. So you didn't have a choice but to buy from china as they were the only ones that made them. I never had the china bomb happen, i think because most tires came from china, they got a bad rap. I had china made tires on my pup and had 0 problems.
I have 4- lug hubs as well. You might be able to go up to 5.30x12 tires. Those have a higher load rating, but may be slightly larger in diameter .I have a 2010 Viking. Had a blowout, a flat and am having a whole new set installed tomorrow. I've been buying 4-80-12's Have a 4 hole rim and they are hard to find. Can I upgrade to a bigger, sturdier tire?
The over tightening stretches the mounting studs. Once they're stretched, they lose their strength. A few hours of driving can have them shear off as they weaken over every bump in the road.
I've snapped off wheel studs before from over tightening, being just 20 ft/lbs over. I was following the spec for steel wheels, not the unpublished aluminum wheel spec. Yes, I was using a torque wrench. Just had bad information.
I now tighten aluminum wheels to 80 ft/lbs, and steel to 100 ft/lbs. Haven't snapped a stud since.