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2020 duramax

  1. 2020+ (Non Powertrain)
    Its the LM2 2020 version Overall,nice machine. Economy will climb often into the 30's have gotten 35.7 and near that often in mixed driving not alot of stop and go. It handles well starts well however its elevated idle that is set to on, never works on mine under the 30 degree temp and below...
  2. Introductions
    Hello, Love my new truck. Re-joined group to find some answers to annoying problems: clicking noise coming from steering wheel that Dealership can't fix brakes sound like a semi truck on first use of day --Mark
  3. Wheels & Tires
    The stock tire on my 2020 duramax 2500hd is 275/70r18. Has anyone upsized to 285/70r18? If you have, can you provide pics and also comment on any issues? I don’t really want to add spacers and would like to keep the tire profile flush with the truck body. I plan to keep the stock rim with no...