"This is just one awsome piece of manhinery! These DuraMax engines are fantastic and the Allison transmission is unbeatable!!! Take it from a guy who has owned two Ford Powerstroke diesels these trucks are just so much more powerful and more comfortable to ride in . As a matter of fact this truck is more comfortable to ride in than any of my cars I've ever driven ,Mercedes Cadillacs or Linclon continental. Would recomend to all."