thanks, quad 2x2 long 12000. your average 5th wheel, flat deck with any length over 16 ft will have two 6000 lb axles. our gvwr on most of our 24 footers is between, 12800 and 13200, i dont know why the difference, in identicle trailers, [but that's another story] so the trick is going to be to "de-weight" your three axle and heavier axled trailers to still combine under 26001. until the dot catches on to this trick, most of us can still get by without having to get cdl's.