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!
transmission conversion
1-2 of 3 Results
  1. Transmission Shop
    Hello, first off I have searched this and went through 10 of the 25 pages, provided in my search. With that my question was not answered. I have a 2004.5 lly with the 5 speed Allison 1000, I’ve been doing all of the supporting mods and I’m almost ready to tune. I’d like to jump into my trans...
  2. Transmission Shop
    is the new valve body and tcm in the 5 speed to 6 speed conversion kit on suncoast's website the EXACT same valve body and TCM on a factory newer 6 speed allison trans? thanks guys
1-2 of 3 Results