guys the wife and i just bought a 2011 tahoe, and traded our 04 z-71 tahoe in. The problem is the new tahoe has no get up and go compared to the old one . Is it just the gears? This one has 3.08's, and the other had 3.73 i believe. I figured the extra 40 horse and six speed would minimize that, plus we are only running 17 inch tires. This thing is a slug. Thanks for the help.