trlrboy,
I have an 09 3605Rl and have already replace all four marathons due to the edges all wearing out. I've kept the pressure at 80psi, and even had the axle alignment checked. The new marathons are wearing again in the same manner. Hopefully someone can give me some help at the spring MOC ralley in Kerrville, in March. I had those G614's on my SOB and never had trouble. I carried 110psi in them and they seemed to wear consistantly through the 1-1/2 we towed it around the country. I may have to go through the tire upgrade also. Did you upgrade the spoked aluminum wheels to steel? Do you carry 110psi in your tires?
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