Chevy and GMC Duramax Diesel Forum banner
  • Hey Everyone! Enter your ride HERE to be a part of this months Ride of the Month Challenge!


  1. 06-07 LBZ & LLY Duramax Powertrain
    Hey guys I looked for another tread with the same issue but was unable to find one so here we go..... I have a 2006 LLY stock duramax allison 6-speed with a bully dog programmer and outlook monitor. I've had the truck since new placed a programmer on it at 17k and it now has 47k on it. The...