Numerous reasons to go single axle Geof. Smoother ride, Only four tires to replace instead of eight, Better traction, Fuel economy to name a few. Semis pulling a double bottom setup { 2x 28' trailers mostly have single drive axles. Tandem axles are rated for 34,ooolbs and I very much doubt a 30' motorhome will weigh anywhere near that, As for extra safety it would be quite a coincidnce for two tires on the one side to blow at the same time. The Sterling I am planning on converting is rated to gross 80,000lbs that's 12 on steering, 34 on tandem drivers and 34 on trailer tandems. Just my thoughts but any advice would be very welcome.
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