A forum community dedicated to Chevy and GMC Duramax diesel owners and enthusiasts. Come join the discussion about modifications, towing, classifieds, troubleshooting, maintenance, and …

I bought a 2025 GMC Sierra 1500 Denali Ultimate Duramax and overall, I love the truck. It's an absolute joy to drive, and the engine is fantastic. Unfortunately, with barely 3k miles on the …

Sep 2, 2024 · Hello, new to this forum. Thinking about purchasing a 23 or 24 GMC Sierra with the 3.0 Duramax. I drive about 10 miles each way to work, mixed freeway and city. Reading about …

Feb 10, 2025 · As the title states, looking to get some real-world feedback from 2024 and/or 2025 Duramax owners. A little backstory. I had a 2024 2500LT. Beautiful truck. Zero issues. Sold …

Jan 29, 2025 · The shop where i work was using all AcDelco oil filters for the Duramax but with the design change the protrusion of the gasket was very minimal and we had many returns …

Jan 2, 2025 · Do you start using fuel additives immediately on new engines? Just picked up a new ‘25 L5P Silverado with 12 miles and wondered when would be best to start the additives. Our …

Apr 14, 2025 · I went from a 2017 2500 GMC Duramax which was getting 23 / 24 highway, 14/16 combined, and 12/13 towing 10K pounds, to a 2025 2500 GMC Duramax getting 20 highway, …

Mar 16, 2011 · The offset in a Duramax LB7 is about 2 - 3 inches. This shows why it is harder to get to some rear engine bolts on the driver's side of the engine bay. The same principle …

Apr 29, 2025 · 23 3500 SRW Denali Red Tint Coat, 09 GMC SLT Dually (Farm Truck) Alcoa 19.5s with Michelin XZE, Centramatics,Tow Mirrors, Chrome Grill Overlay, Rear underseat …

Oct 12, 2023 · 2024 Silverado 3500HD SRW LT Crew 6.6L Duramax, Brute II Bumper- 11,000 and counting 2022 Silverado 1500 LT Crew 3.0L Duramax, 76,000 and counting 2008 …