time2roll wrote:
Get the GY Endurance tires. Probably E rated depending on size. If the ride is bad at 80psi then drop it down to 70-75 psi. But I think it will ride better not worse. Higher margin of load rating will reduce the chance of tire failure. Most factory tires are very close to max rating and is part of the reason people have tire failures.
I agree on the ENDURANCE.
Bottom line know what each axle and preferably what each tire is carrying. If the "D" tire has plant of capacity for your weight then stick with "D" but if close to the MAX rating buy the "E" and run them at the same pressure as the "D" tires required. Better yet use the load inflation chart for the "E" and add 5 psi to what the chart dictates.
My Boat Trailer had "C" tires in 14" and I changed to "D" ENDURANCE and guess what the "C" inflation of 50psi was correct for the new "D" tires. 20k with plenty of tread left and wearing perfectly even.