Jump to content
  • Sign up for FREE! Become a GM-Trucks.com Member Today!

    In 20 seconds you can become part of the worlds largest and oldest community discussing General Motors, Chevrolet and GMC branded pickups, crossovers, and SUVs. From buying research to owner support, join 1.5 MILLION GM Truck Enthusiasts every month who use GM-Trucks.com as a daily part of their ownership experience. 

6.6L Duramax Diesel & Allison Powertrain (L5P/MGM)

Technical powertrain discussion specifically for the 2020+ L5P Duramax Diesel Engine and 10-Speed Allison Transmission combination on the 2020 Chevrolet Silverado 2500 / 3500 or 2020 GMC Sierra 2500 / 3500

17 topics in this forum

  1. rear end fluid

    • 4 replies
    • 95 views
  2. 2020 L5P First Oil Change 1 2

    • 24 replies
    • 2,621 views
    • 1 reply
    • 115 views
    • 17 replies
    • 1,583 views
    • 4 replies
    • 251 views
    • 4 replies
    • 298 views
    • 11 replies
    • 586 views
    • 10 replies
    • 616 views
  3. Engine light on 2401 miles 1 2 3

    • 40 replies
    • 2,185 views
    • 9 replies
    • 742 views
    • 5 replies
    • 310 views
    • 30 replies
    • 3,518 views
  4. Help buying new truck 1 2 3

    • 39 replies
    • 1,207 views
    • 1 reply
    • 216 views
  5. Towing question?

    • 10 replies
    • 959 views
    • 5 replies
    • 619 views
  6. Allison Transmission

    • 0 replies
    • 487 views


×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.