Jump to content

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 through 2024+ Chevrolet Silverado 2500 / 3500 or 2020 GMC Sierra 2500 / 3500


170 topics in this forum

    • 1 reply
    • 2.1k views
    • 3 replies
    • 10.1k views
  1. Barney

    • 0 replies
    • 316 views
    • 16 replies
    • 10k views
  2. Engine operating temp

    • 7 replies
    • 2.4k views
  3. Silverado 2500HD Issue

    • 11 replies
    • 3.8k views
  4. Auto Grade Brake 1 2

    • 18 replies
    • 3.8k views
  5. Winter fuel for L5P

    • 3 replies
    • 4.6k views
  6. Air bags

    • 3 replies
    • 1.8k views
    • 2 replies
    • 1.7k views
    • 2 replies
    • 3.8k views
    • 2 replies
    • 7.4k views
    • 14 replies
    • 37.9k views
  7. Break in period 1 2

    • 15 replies
    • 9.5k views
    • 2 replies
    • 3k views
    • 31 replies
    • 15.5k views
  8. 2021 Diesel break in 1 2 3

    • 36 replies
    • 21.7k views
    • 1 reply
    • 1.4k views
    • 72 replies
    • 38.4k views
    • 5 replies
    • 8.9k views
    • 5 replies
    • 7k views
    • 10 replies
    • 18.4k views
  9. PTO Question

    • 0 replies
    • 2.1k views
  10. 2500 mods

    • 3 replies
    • 2.3k views
    • 10 replies
    • 7.9k views


×
×
  • Create New...

Important Information

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