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  1. Ride of the Month Contest - ROTM
    Here’s my ride. Y’all have an awesome day! God bless! 2018 GMC Denali 2500HD 4x4 McGaughys 7”-9”(set at 9 with torsion keys and Cognito upper control arms) Mickey Thompson Baja Boss AT 37x13.50 R24 Fuel 24” FF71 wheels Compustar Pro T13 remote start/alarm with proximity unlock Firestone...
  2. Maintenance
    Has anyone used this in their L5P? Did it help? Did it hurt? Thoughts? Thanks
  3. General Discussion
    Does anyone know if a air intake is worth it for better gas mileage and power? I have a 2020 Silverado 2500 diesel.
  4. 11-16 LML Duramax Powertrain
    I’m thinking about buying this truck, it’s a 2015 Chevy 3500hd CCSB, it has higher mileage, 200k, anything major I should make sure was replaced or check before buying?
  5. General Discussion
    What are your top 5 must have diesel performance parts?
  6. For Sale Section
    '19 Silverado 2500HD LTZ The only thing this unit does not have is the power sliding mirrors and sun roof. Otherwise fully loaded. B & W 5th Wheel Hitch S & B intake(increased mileage of 1 mpg plus) Short bed with tonneau cover Just under 28,000 miles with new tires Mileage will continue to...
    $65,000 USD
  7. For Sale L5P ECM

    Parts For Sale
    Factory New ECM, E41 from GM Ecm has no programming on this one. it will need to be programmed for your L5P or sent off to be unlocked. Call or text 850-819-8315
    $1,000 USD
  8. General Discussion
    So I recently bought a 2003 2500hd 6.6L duramax. I didn’t have problems in the beginning but then I noticed when decelerating there was a low wind down hum. (Don’t know if this is connected) Found out I was low on transmission fluid... REALLY low. It took a whole quart and still isn’t full...
  9. General Discussion
    I am curious to get feedback from the community. I purchased a new 2022 Silverado HD Duramax and it finally came in after months of searching and waiting for it in transit. Anyone who’s purchased a vehicle lately understands the troubles of that in itself right now. I went to pick it up...
  10. 911 Problems Forum
    Update: we figured it out... when the dealer replaced my cluster as part of the recall they gave me a bad cluster that eventually stopped working. Took it apart and the soldering was all messed up so I re soldered it and we are all good. I am currently fighting with the dealership about their...
  11. Introductions
    have an 03 Duramax. Have been getting the error message "Range Shift Inhibited" when I’m driving down the road have to put it back in park until it decides to go into gear. I have had the tranny serviced and replaced the NSBU switch. It is still giving the error "Range Shift Inhibited" and my...
  12. 11-16 LML Duramax Powertrain
    I fuel up at a diesel pump at a Walmart gas station, drove approx 25 miles home then 5 miles to meet a friend. sitting with AC on, engine just stops and will not restart. this was on Thursday. Could not get a tow until Friday morning, took it to a local dealer. Dealer got to it on Monday and...
  13. 2011-2016 (Non Powertrain)
    Good Afternoon, I hope you are all doing well. My stock emissions-intact 15.0 LML has been tucked in storage for a few years due to a significant winter advisory and the truck has been there ever since to save money. I have been pondering the aforementioned idea to begin daily driving the solid...
  14. CraigsList / eBay Finds
    2006 Chevrolet Silverado 2500 LT LBZ DIESEL 4X4 6.6L On Ebay Price: $27,888.00 https://www.ebay.com/itm/2006-Chevrolet-Silverado-2500-LT-LBZ-DIESEL-4X4-6-6L/124597644187?
  15. CraigsList / eBay Finds
    2011 chevrolet 2500 HD Crew Cab 4wd Duramax Diesel On Ebay Price: $14,999.00 https://www.ebay.com/itm/2011-Chevrolet-Silverado-2500/224342693909?
  16. General Discussion
    What’s the future of diesel trucks? I love the new Duramax (2019 is best looking imo) but I DONT want EGR, adblue and all that shit! Here in Norway it’s not so strict yet but we follow USA and the rest of the world. The only reason diesel trucks can roam some what free is there has not been so...
  17. General Discussion
    Hey guys, I’m looking at a 08 Silverado 2500. I really love the truck and it has tons of upgrades, with his calculations and paperwork around 17k. The concern is that is has 305k miles. The guy that did the build is probably on this forum, seems like a straight shooter and is an engineer that...
  18. 01-04.5 LB7 Duramax Powertrain
    I went to go start my truck after replacing the cabin air temperature sensor aspirator and when I turn the key none of my gauges on the cluster turn on but the battery light and my mileage and gears turn on and the truck cranks over and acts like it’s gonna start but then pukes out and keeps...
  19. General Discussion
    Hi I am new to this but I really want to find out what diesel engine would be the best to put in a K10 chevy I'm not worried about price right now or how hard it will be I just want to know because in a few months i'm buying a k10 and I want to fully redo everything to make my dream truck but...
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