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  1. GM-Trucks.com Original News & Product Reviews

    1. General Motors Product and Industry News   (18,489 visits to this link)

    2. The Newsroom Archive

      Original General Motors, Chevrolet, GMC, and other Industry News. Our archive for articles published before October 2019. 

      13.2k
      posts
    3. The Garage Archive

      Our original product review and discussion review archive. For articles published before October 2019. For current articles, see our all new Garage!

       

      1.8k
      posts
  2. Next-Generation 2026 Chevrolet Silverado & GMC Sierra Speculation & Rumors

    1. 2026 Chevrolet Silverado & GMC Sierra

      Speculation, discussion, and conversation surrounding the future next-generation Silverado and Sierra. Our best guess is they will debut around the 2026 model year time frame. Submit your guesses, wants, needs, and any news here to stay on top of the rumors. 

      24
      posts
  3. 2022-2026 Ultium Electric Vehicle Forums

    1. 2022-2025 GMC HUMMER EV Pickup & SUV Forum

      Offical discussion forum for owners of the 2022-2025 GMC HUMMER EV Electric Pickup and SUV - based on General Motors Ultium Platform. 

      275
      posts
    2. 2024-2025 Chevy Silverado EV & GMC Sierra EV Forum

      The ultimate discussion forum for owners and enthusiasts interested in the 2024-2025 Chevrolet Silverado EV and GMC Sierra EV.

      45
      posts
  4. 2019-2025 Chevy Silverado & GMC Sierra Forums - T1XX Platform

    1. 2019-2025 Silverado & Sierra

      Research, purchase, get help, and join other enthusiasts to talk about the 2019, 2020, 2021, 2022, 2023, 2024, & 2025 Chevy Silverado 1500 & 2019, 2020, 2021, 2022, 2023, 2024, & 2025 GMC Sierra 1500

       

       

      189.9k
      posts
    2. 41.8k
      posts
    3. 2021-2025 Tahoe, Suburban, Yukon, Yukon XL & Escalade

      The official forum to discuss the Chevrolet Tahoe, Chevy Suburban, GMC Yukon, GMC Yukon XL & Cadillac Escalade for the 2021 through 2025 model years. 

       

      1.2k
      posts
  5. 2014-2019 Chevy Silverado & GMC Sierra Forums - K2XX Platform

    1. 2014 - 2019 Silverado & Sierra

      General topics regarding the K2XX platform; The 2014 through 2019 Chevy Silverado and GMC Sierra. 

      615.2k
      posts
    2. 2015-2020 Suburban/Tahoe & Yukon/Yukon Denali

      General topics about Chevrolet's and GMC's full-size sport utility vehicles, the 2015-2020 Chevy Tahoe & Suburban, GMC Yukon/Yukon Denali and the Cadillac Escalade. 

      13k
      posts
    3. 2015-2019 Silverado HD & Sierra HD

      Ownership help, research, and support for the K2XX generation 2015, 2016, 2017, 2018 & 2019 Silverado HD / Sierra HD. Also known as the Silverado 2500 or 3500. 

      42.3k
      posts
  6. 1999-2013 Chevy Silverado & GMC Sierra Forums - GMT-800 & GMT-900 Platforms

    1. 1999-2013 Silverado & Sierra 1500

      A forum specifically for the 1999-2006 GMT-800 based Silverado/Sierra and it's improved 2007-2013 GMT-900 Silverado/Sierra counterparts. 


       

      138k
      posts
    2. 2000-2014 Silverado & Sierra HD

      Discussion regarding the 2000-2006 & 2007-2014 Chevrolet Silverado & GMC Sierra 2500HD/3500HD

      28.9k
      posts
  7. Chevy Colorado & GMC Canyon Forums

    1. 2023-2024 Chevy Colorado & GMC Canyon Forum

      The official forum for the all-new 2023 and 2024 Chevrolet Colorado and GMC Canyon. Tips, tricks, help, troubleshooting, advice, and resources for owners and enthusiasts. 

      72
      posts
    2. 2015-2022 Colorado & Canyon

      The official owner/enthusiast discussion/support forum for the 2015 through 2022 mid-size Chevy Colorado and GMC Canyon pickups. Research, support, technical help, service advice, sales advice, and more. Covers the 2015, 2016, 2017, 2018, 2019, 2020, 2021, & 2022 Colorado and Canyon models. 

      3.6k
      posts
    3. 2005-2012 Chevy Colorado & GMC Canyon

      General Discussion for the first generation Chevy Colorado and GMC Canyon Compact Pickup Trucks. Also includes the 2005-2010 Hummer H3 and H3T.

      437
      posts
  8. Chevrolet / GMC / Buick / Cadillac Crossover & SUV Forums

    1. 2024 Chevrolet Traverse, GMC Acadia & 2025 Buick Enclave

      A forum for owners, enthusiasts, and interested buyers of the 2024 Chevy Traverse, GMC Acadia, and future 2025 Buick Enclave. 

      3
      posts
    2. 2017-2023 Traverse, Acadia, Enclave & XT5

      General / Technical Discussion for the 2017-2023 Chevy Traverse, GMC Acadia/Acadia Denali, Buick Enclave, and Cadillac XT5. These midsize crossovers are based on GM's C1XX platform. 

       

      377
      posts
    3. 2025 Chevrolet Equinox & GMC Terrain Forum

      The official forum of the all-new 2025 Chevrolet Equinox and GMC Terrain. Research and buying advice, ownership help, technical tips, and more for Equinox and Terrain owners and enthusiasts. 

      • No posts here yet
    4. 2019 - 2024 Blazer

      Welcome back! The iconic "Blazer" nameplate returned in 2019 as a midsize crossover. Based on a variant of GM's C1XX platform. 

       

      127
      posts
  9. Classic Chevrolet & GMC Pickup Truck Forums

    1. 1988-1999 Chevrolet & GMC C/K GMT400 Platform

      Like a rock. The classic 90's pickup truck. General and technical discussion for 1988 through 1999 Chevrolet and GMC pickup trucks. Parts wanted and for sale encouraged.

      13.5k
      posts
    2. 1973-1987 Chevrolet & GMC Square Body / Rounded Line Pickups

      General and technical discussion for 1973 through 1987 Chevrolet and GMC pickup trucks. These years were otherwise known as "square body" pickups, although GM officially called them "rounded line" designs. Parts wanted and for sale encouraged.

      1.5k
      posts
    3. 1967-1972 Chevrolet & GMC Glamour / Action Line Pickups

      The transition from work transportation to personal vehicle. General and technical discussion for 1967 through 1972 Chevrolet and GMC pickup trucks. Parts wanted and for sale encouraged.

      306
      posts
    4. 1960-1966 Chevrolet C/K/Apache & GMC 1000-3000 Pickups

      The beginning of the modern age of the pickup truck. General and technical discussion for 1960 through 1966 Chevrolet and GMC pickup trucks. Parts wanted and for sale encouraged.

      111
      posts
    5. 1982-2005 Chevrolet S-10/Blazer & GMC S15/Sonoma/Jimmy

      1982-2004 Chevrolet S-10 & GMC Sonoma, 1983-2005 Blazer & Jimmy

      1.6k
      posts
    6. 1969-1994 Chevrolet K5 Blazer & GMC Fullsize Jimmy

      The smallest full-size SUV in the history of Chevrolet and GMC. The original two-door station wagon. Discussion for the classic 1969 through 1994 K5 Blazer and fullsize Jimmy.

      166
      posts
  10. Silverado, Sierra, Trucks, Parts & Accessories For Sale

    1. For Sale/Wanted

      Items/Vehicles For Sale or Wanted
      Please use caution when dealing with someone you do not know.

      55.1k
      posts
    2. Member & Vendor Rating Forum

      Dealt With A Forum Member Or Aftermarket Vendor? Tell Us About Your Experience! We All Want To Know Who To Buy From & Who To Stay Away From.
      Please Provide As Many Facts As Possible.

      697
      posts
    3. Member Product Reviews

      Share your experiences with any products here. Good or bad!
      Please follow posting guidelines.

      632
      posts
  11. The Lounge

    1. Off-Topic

      Slacked off at work today? Maybe your neighbors always piss you off? Got a funny joke or video? Let's hear about it. We're here to listen.
      Mindless ranting and random posts encouraged.

      77.5k
      posts
    2. Future Vehicle Speculation & Spy Shots

      Want to know what's next for General Motors and the Silverado/Sierra? This is our future vehicle speculation forum. Post spyshots, rumors, news articles - anything about any future General Motors product. 

      2.2k
      posts
    3. Automotive Industry & Market Discussion

      Member driven discussion on the competitive landscape that is the automotive industry. Car reviews, spyshots, competitive announcements, and anything related to the market as a whole.

      8.8k
      posts
    4. New Member Introductions

      Are you a new member? Maybe a member who's never posted anything before? It's alright! Come on in, start a new thread, and introduce yourself.

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      posts
    5. Meetups, Events, & Gatherings

      Connect with other GM-Trucks.com members around the US or around the world.

      3.2k
      posts
    6. GM-Trucks.com Comment Box

      For questions, comments, and suggestions related to this website. Not for vehicle related help.

      2.2k
      posts
  12. Hobbies & Lifestyle

    1. Photography

      Pictures of your truck & yourself. Photoshop requests & signature pictures. Photography and cameras as an art or hobby.

      9k
      posts
    2. Major League Sports, Outdoor Recreation, Firearms, Hunting, OHRV

      For discussion of national sports teams and events -NFL, MLB, NHL, UFC, NASCAR, NBA

      Outdoor recreation, hunting, guns & firearms, Camping, and ATV/UTV/Snowmobile Riding. 

      8.7k
      posts
    3. Racing, Strip, & Track

      Track talk, racing strategies, super-performance parts, and techniques.

      1.5k
      posts
    4. Trailers, Hitches, & Towing

      From towing a horse trailer with an HD to a jet ski with an S-10. Discuss proper technique, wiring, electronic trailer brakes, or anything relevant to towing a trailer.
      8.4k
      posts
    5. Garage & Home, Snow Plowing, Landscaping, & Lawn Care

      A forum dedicated to all things Garage and Home. Tools, organization, accessories and things to make our lives easier outside our vehicle. In the Winter, discussions related to plowing such as ice management, plow brands, spreaders, and operating a plowing business. In the Summer, keeping your lawn looking great and/or running a landscaping business.

      3.4k
      posts
    6. Technology, Devices, & Gaming

      Computer and technology related discussion. Includes smart phones, computers, electronics, software, games, and other non-automotive tech.

      2.5k
      posts
    7. Vehicle Buying, Financing, Incentives, & GM Card

      Discussion around dealership experiences, vehicle shopping and buying, financing, incentives and questions about using the GM Card

      4k
      posts
    8. Vehicle Builds

      The transformation of a vehicle from mild to wild. Share your own story - modification by modification. One vehicle per thread - one thread per vehicle.

      20.3k
      posts
  13. Technical & Advanced

    1. Vehicle Appearance, Care, & Maintenance

      Help for the do-it-yourself vehicle owner. Suggestions on how to make your truck look better & last longer.

      19.1k
      posts
    2. Ask the GM Technician

      Have a hard question?
      Only Questions That You Would Go To The Dealer For, Please!

      29.3k
      posts
    3. Performance Engine Tuning

      A forum dedicated to intensive and experienced engine and computer modification topics.

      3.9k
      posts
    4. Transmission, Suspension, Transfer Case, & Axles

      For all transmission and drive-line related topics. Included but not limited to 2WD, 4WD, AWD, transfer cases, & lift/lowering kits.

      12.2k
      posts
    5. Wheels, Tires, & TPMS

      Anything related to rims, tires, tire pressure monitor sensors, fixing a flat, and general tire maintenance here.

      16.1k
      posts
    6. Audio, Electronics, OnStar, MyLink, Intellilink & SiriusXM

      Infotainment, Mylink, Intellilink, SiriusXM, Bluetooth, Navigation Systems, OnStar, RemoteLink, smartphone connectivity, & aftermarket audio. Also includes Android Auto and Apple CarPlay.

      12.3k
      posts
    7. How-To

      Installations, Maintenance, and Repairs.

      2k
      posts
  14. Commercial Vehicles

    1. 1980-2009 Chevrolet Kodiak and GMC Topkick

      Discussion for the medium-duty commercial Kodiak and Topkick.

      197
      posts
    2. Chevrolet Express & GMC Savana

      All topics related to Chevrolet and GMC's popular full-size van line.

      382
      posts
    3. Chevrolet Silverado Chassis Cab 4500HD/5500HD/6500HD

      Discussion for the medium-duty chassis cab class 4/5 Silverado trucks. 

      83
      posts


  • Posts

    • I just got back from and extended trip covering 4000 miles with about 3000 of that towing my fifth wheel.  I scaled the truck the first day out with the trailer loaded for our typical trip. We have a Reflection 337RLS that has a Splendide washer in the front closet. This model is a little pin heavy to begin with and the washer just adds to it. I did not get a split weight since I already know its heavy and I bought the 3500 because of that. I am solidly within my load limit even with all the stuff in the bed. This setup likely would overweigh a 2500. In the bed I had my 4500w inverter gen, a 20lb spare propane cylinder, a 6 ft fiberglass ladder a 6 gallon spare gasoline tank with a pump, 2 crates of red oak firewood and a couple cases of drinking water. All told the trailer and cargo come out to 13,000 over the unladen truck weight. I also had 2 bikes on the back of the trailer but they are light aluminum frame pedal bikes, rack and bikes are less than 100#. The trailer is a mid profile 35 footer.   Having set all that up here is my impression of the new truck with the 10 speed versus my previous 2021 with the 6 speed.  First off the 10 speed is an improvement, not light years ahead, but an improvement none the less. I had no issue with the 6 speed in my 2021. I did lock 6th gear out when towing though. It had a habit of flaring when shifting back from 6 to 5 and I was worried about the long term effects of that. Had I kept it my plan was to replace the torque converter and install a shift kit since the TC is a weak link in the vast majority of the GM transmissions.    When towing I put the truck in "L" and moved the selected gear to "8" which locked out 9th and 10th. I typically run around 65 MPH and this kept me around 2100 RPM which experience has found is where this engine likes to live when towing. I would like to see some sort of retained memory when using the "L" selection. It becomes tedious when every time you get back in the truck you have to reselect the gear. It would seem that GM could retain that info when connected to a trailer but at this point mine doesnt. A small thing but when towing a lot it becomes a small annoyance.    After all the 4000 miles of driving using the trucks fuel economy monitors and well as the ones on my Scangage I came to the conclusion that 8th gear was best suited for this load. I did try using 9th gear a few times which put the truck in the 1700 RPM range but it made no improvement to the mileage either instant or longer term. I even went so far to allow the 9th gear upshift on the longer downgrades and didn't see any advantage. It did raise the trans temp 2 degrees with the additional shifting when selecting 9th. My trans temps were around 145-160 consistently no matter the terrain. The only time I saw 180 was in Florida during an I-4 stop and go session that lasted about an hour. It would seem the trans cooler on this truck is solid.    I would not tow heavy with this truck without a Scangage. I played with the display several times and have the 3 screens setup for similar base gages with a few varied between screens. I did have an issue with the Scangage not booting up occasionally and I contacted them. When I first got it in December I downloaded the latest program on WIFI but by the time I contacted them in March they had a new update that supposedly corrected this. I did however have an issue yesterday with it not booting up after a remote start sequence. I plan to contact them with that info and will follow up.    My mileage averaged about 8.25 to 8.5 with a couple of stretches of sub 8 and a couple of 9.25-9.5  This setup is very sensitive to head winds  and the gasser lacking the diesels torque is most evident when windy. Its not bad but the mileage suffers. Going through Ohio yesterday was pretty windy and depending on the direction brought down my mpg to a little over 8. Once you get North of Dayton its pretty flat and with low or no wind the truck is capable of 9mpg but that rarely happens in Ohio in the spring.    I do have plans for an exhaust mod but I haven't decided between the 3 1/2" Borla muffler or the MBRP kit. The Borla is almost a direct fit with the stock muffler cut out and 2 band clamps but I like the MBRP sound. The price difference is substantial but I dont want to drop $300 on the Borla and then find its too loud. Stay tunes for that one.    Overall I am still please with the setup and economy of the gas engine, consider the price of DEF along with the added cost of diesel it doesn't come close to covering the price split. Its hard to argue with the diesel torque though. If I felt the reliability of the Dmax and the DEF weren't an issue I would probably own one but in today world it doesn't add up for me, although I do have a feeler out for info on when the 8.3 comes online.  LOL   Hopefully you found this rant useful.    Scott
    • Maybe add 60 pound sand bags in the bed for weight, very common in VT. My truck has over 450 pounds in the bed (ARE and stuff). My truck weighed 8680 pounds, a little over 1000 pounds over curb weight, when I went to a Cat Scale. I don't need to add any weight for winter!
    • I just got back from an extended trip. 4000 total miles with almost 3000 of that including 13,000 lbs of trailer and gear. The disptick still shows full and the oil is visually (not that it means much) not very dirty at about 40% oil life. the truck now has 5000 miles on it with the first oil change at around 600 miles. My 2021 was similar pulling the same load and trailer but with the 6 spd. 
    • I'd suggest looking into Katzkin leather. 
    • wiring or connector at the back has some problem?
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