Not in this lifetime. We originally had a 2004 D/A, scaled ready to travel 7500 pounds. Leaving a whopping 1700 pounds of payload. Our 35 foot fiver scales 13,500 pounds with a real pin weight of 3000+ pounds. 1200 pounds overloaded. Tires were the first change, followed by air bags. Still 1200 pounds overloaded. Nothing I could do increased that! With a 15K pound fiver your pin weight will exceed 3000 and likely closer to 4000 pounds. Can your truck pull it? Yes it can, but once loaded you will benso far over the trucks GVWR it will not be funny. First time you start down a long mountain grade you will understand what Im telling you is true! Until then believe what you want.