Cummins12V98 wrote:
Ok so you have 6,005# per tire capacity with a "J" tire where a "H" would have had 4,805#. Now the "J" only allows 62mph but the "H" allows 75mph.
Not sure but the only info I can find on a 40' Mt Rushmore 2006 is it's 38' and has a MAX GVWR of 16K if so that would have at a max weight of 3,200# per tire at 20% pin. Not sure the logic of 6K capacity and the rougher ride it will give and limiting your self to towing at 62mph in some of the Freedom States. But hey nice to have options.
At less than 60% of the capacity of the tire and max pressure, I have very little to worry about running 70mph. Tires run very cool in 100* heat and realy no difference in ride noticed. The 62mph rating is for max loaded tire, which I am nowhere close to. I run them at max psi and have no issue in 3 years that they have been on there. I am very pleased with them and when it is time to replace them I will go with them again.
