My Goodyear 614 had complete failure this weekend...BOOM, back left tire. Pressure good when I started out, but maybe a little old, or ran over something. For the record, the age was 7 years according to DOT date. Fortunate, damage was minimal.
Over the past six years and 3 different trailers, I have blown out a exactly 3 tires(one on each trailer), all rear tires. One was China made LT, a brand I had never heard of, one was a Goodyear Marathon(ST) and now the Goodyear 614.....only common point was that they were all over 5 years old at the time of the blow out. I am replacing all 4 with Sailun 637...almost 1/2 the money of the Goodyear 614 and while not a long track record, they are getting an okay reviews. Rated for 3750 lbs at 110 PSI.
I considered the Carlisle 235-85-16 load F-ST(95psi, 3900 lbs), dealer strongly recommended this(contrary to the negative posts, the dealer says that they hear no more negative than other tires). One reason I chose S637's was that on the Carlisle website they say..."..the combined capacity of all of the tires should exceed the loaded trailer weight by 20 percent"...so in effect, not much more load capability that a Load E (3042lbs at 80psi)...the added bonus is higher speed rating...not like I haul over 60-65, but does happen from time to time. I figure I have a little more load capacity at speed.
Last thought on a long post....have any of you guys ever checked the loaded weight, wheel by wheel....most people I talk to blow the rear tires...I am curious to see if the rear tires are carrying more than 1/2 the combined weight on one side...