Home > AUTOMATIC KITS > JEEP/AMC/IHC > HD UPGRADE PACKAGES
HD Upgrade packages include upgraded versions of all of the main parts involved in a transmission rebuild. They are available in two forms: Utility (Heavy Duty) or Tow Matrix (Extreme Duty). Each packages include the following items to upgrade your transmission: HD super rebuild kit; Transgo reprogramming kit, HD torque converter, HD auxiliary transmission cooler; rebuild manual.