My 2008 Big Horn 3055RL came with 235/80R16 Mission tires mounted on 16" x 6"rims rated for 3750 lbs at 110 psi. After 2 blowouts, I am trying to find stronger tires. Several Heartland Forum posters recommend Goodyear G614 which are load range G but the 235/85R16 tire requires 6.5" rims. Michelin XPS Rib tires have been recommended, as well. They only come in Load Range E but appear to be much higher quality than the Missions. There is no XPS Rib that will mount on 6" rims except one that is 32" in diameter. The tires currently on my 5th wheel are approximately 30" in diameter and are only 2" apart so those XPS Ribs will not fit. I have 2 options: purchase 6.5" rims and G614 tires or separate the axles a couple of inches so that the XPS Ribs would fit. I am concerned about altering the axle spacing as I assume Heartland had a reason for mounting them as was done at the factory. My questions is, "Is it safe to alter the spacing of the axles?". If you have any other suggestions for solving my problem, I would appreciate hearing them.
Thank you,
desertden
Thank you,
desertden