2000 GMC Sierra 2500 3/4 ton 2wd standard cab long bed, 6.0L vortec, 480LE, towing package with brake controller and trans temp gauge. Bought it off an old Marine that towed a camper 6 times, and a few runs through town. 50,100 original miles. $7000 Truck is like brand new, still has a hint of new car smell, and you can still see where the window sticker was stuck. Plan to add air package, throttle body spacer, less restrictive exhause and performance chip. lookin at options for rear sway bar setup. Any suggestions would be appreciated.