Hey guys. I've previously owned a 2002 Chevrolet 4x4 Creb Cab short bed (loved it) 2500 Duramax and a 2005 GMC Long bed (ok, but mileage always sucked). I am currently looking for a 2006 and up crew cab short bed 4x4 to build into a daily driver/hot rod/tow vehicle. I like the older body style, but might go newer. Looking to lower it and beef it up power wise. Any suggestions as far as better years to look for? Is a newer model minus some restrictions as good or better than an older one? I was thinking the Allison six speed would be nice.