Originally written by ThreeCW on 2014-11-18 7:43 PM
TLR,
My opinion on your tire situation is to REPLACE them
(notice the capital letters :
)
We had a very similar situation with our 2006 Hart 13 ft LQ x 8 ft wide 3H trailer. This trailer was “new to us” last year and came with Goodyear G614 RST tires, “G” load rating, in a 235-85-16 size. Tire specs include new tread depth = 12/32”, speed rating = 75 mph and maximum load = 3750 lbs per tire. The tires “looked great”, still about 10/32” tread remaining, no weather checking and no “indications” of problems. Even thought these tires “looked” great, they “were” in fact still 8 years old!
Our trailer is heavy – weighs in at 11,800 lbs empty and 16,700 lbs with two horses and loaded for camping. Over the scale our trailer was 12,300 lbs on the trailer axles and 4400 lbs on the gooseneck hitch. ASSUMING that each of the 4 tires was “equally loaded” means that each tire was carrying 3075 lbs
(12,300 lbs / 4 tires
) which is 82% of the maximum tire loading.
We decided to keep using these tires, since they “looked” so good. We were about 60 miles from home, heading out for a horse weekend when we experienced a blow out at 60 mph on one of the back tires when heading down a hill. A good portion of the tire tread had basically separated and unwrapped from the tire. The tires were inflated at the time to the recommended inflation pressure of 110 psi.
I was glad to be sufficiently “trucked” with our F350 dually and we safely slowed down, pulled the trailer off of the highway and replaced the blown out tire with the spare. There was some minor damage to the horse trailer aluminum fender which was rectified on the spot with a bit of hammering and we were back on our way. But it could have been worse.
Before our next trip, we replaced all 5 tires
(spare included
) with new tires. We shopped around quite a bit and even considered upsizing to 215-75-17.5 tires which are rated for 4805 lbs, which would have reduced the loading of the tires to 64%. In talking to our Goodyear commercial tire manager, we gained confidence in staying with the Goodyear G614 RST in the original 235-85-16 tire size, as his local experience with these tires was that commercial users were loading them heavy and not having any problems.
We put the new tires on and found that the trailer even pulled better and was smoother going over bumps, if that makes any sense
(softer rubber perhaps
). And we can now go down the road with more confidence, not having to worry about a blow out.
Your Elite 3H x 17 ft LQ with slide likely weighs as much or more than our trailer, meaning that your tire loading is probably above the 82% loading we are under. I would suggest that you consider replacing your tires before your planned trip as your tire age is also likely past a safe, usable age.
Also worth mentioning is an article which I found online regarding the decision process a fellow RV owner when through when deciding to upsize his tires. See this article at:
http://www.dmbruss.com/zFullTimeLifeStyle/FTLS_Tires_SizeChange.htm
Regards, 3CW