83 K10 350/th400/np208 on 38x15.50mud grapplers and i love it. live is good when you tower everyone else on the road(well, most people) sure, i only get 10MPG max, who cares when your truck is the loudest/biggest/baddest mother trucker around!!!! oh yeah, i need more lift and bigger tires since i saw a K5 on half ton running gear with 42tsl's.