goducks10 wrote:
Is your spare also a steel rim? If so maybe you could run it down to the loacal tire shop, have them dismount the tire and then check the inside of the rim for psi/load rating numbers.
I see your dry weight is around 7200lbs, so loaded ready to go maybe 8500lbs minus pin at 1700lbs, so your axle weights are around 6800lb Lets round up to 7000lbs for the sake of it. 7000lbs divided by 4=1750lbs per tire. 225/75/15D tires are good 2540lbs each. 2540x4=10,160-7000lbs=3,160lbs in reserve. I have the same size/weight 5'er and am running D rated. No need for E's unless you like parting with your money. E Maxxis tires have a 2830lb rating compared to 2540 for D's. I don't see 290lbs being worth the xtra $$ if you on the lighter side of weights.
