I Own A 2002 6 Speed 2500hd Long Box W/ Dmax And A 2003 6 Speed 2500hd Short Bed W Dmax. Both Have The Lb7 Engine Can Anyone Tell Me Why It Seem Like My 2002 Has A Whole Lot More Power Than My 2003? It Is Very Noticable Towing As Well As Unloaded. Can Something Be Done About This Power Issue? The Dealer Says The Trucks Are The Same And Run The Same, But They Are Not.