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  1. Next-Generation GM Trucks (2027+)

    1. 2027+ Silverado 1500 & Sierra 1500

      The definitive source for the next-generation 2027 Chevrolet Silverado and GMC Sierra. Breaking news, spy photos, release dates, and technical discussion on the redesigned platform.

      446
      posts

    2. Gen VI Small Block V8 (5.7L & 6.6L)

      The next chapter of GM performance. Discussion on the 5.7L and 6.6L Gen 6 Small Block V8 displacements for the 2027 Chevrolet Silverado and 2027 GMC Sierra.  Talk specs, technology, and the $854M investment in the future of the V8.

      44
      posts

    3. 2.7L TurboMax Engine

      The ultimate resource for the 2027+ GM 2.7L TurboMax featured on the Chevrolet Silverado and GMC Sierra. Connect with other owners to discuss the enhanced power delivery, towing capability, and the brand-new 10-speed transmission.

      6
      posts

    4. ZR2, Trail Boss, AT4, AT4X & AEV Off-Road

      Discuss the 2027+ Silverado ZR2, Trail Boss, Sierra AT4 & AT4X. Get technical info on GM's factory 2-inch lift, 34" and 35" MT tires, Multimatic DSSV dampers, and AEV Bison editions.

      • No posts here yet

    5. 3.0L Duramax Turbo-Diesel

      The premier community for the 2027+ Silverado and Sierra Duramax 3.0L Turbo-Diesel. Explore technical details, towing numbers, and maintenance for this proven, segment-exclusive powertrain.

      • No posts here yet

  2. GM Electric Vehicles (Ultium)

    1. Silverado EV & Sierra EV

      The full-size electric trucks. Discussion for the Chevrolet Silverado EV (WT, RST, Trail Boss) and GMC Sierra EV (Denali, AT4, Elevation). Covers range, towing, and charging.

      68
      posts

    2. GMC HUMMER EV

      The world's first supertruck. Discussion for the Hummer EV Pickup (SUT) and SUV. Off-road modes, CrabWalk, and mods.

      320
      posts

    3. Equinox EV, Blazer EV & Cadillac Lyriq

      The technical resource for GM's electric crossovers. Discussion on the Chevy Equinox EV, Blazer EV, Cadillac Lyriq, and Optiq. Share software tips, range tests, and charging experiences.

      • No posts here yet

  3. 2019+ Full-Size Trucks & SUVs (T1XX Platform)

    1. 2019-2026 Silverado 1500 & Sierra 1500

      The main discussion hub for the T1XX platform. Daily driving, new orders, pricing, and news for the 2019+ half-ton trucks. Includes 2022+ refresh. 

       

       

      205.4k
      posts

    2. 2020-2026 Silverado HD & Sierra HD

      The heavy-duty headquarters. Discussion for the 2500HD and 3500HD. Towing, payload, ordering, and daily driving.

       

       

      53.1k
      posts

    3. 2021-2026 Tahoe, Suburban, Yukon & Escalade

      The full-size SUV headquarters. Discussion for the Chevy Tahoe/Suburban, GMC Yukon/XL, and Cadillac Escalade. Covers the 3.0L Duramax, 6.2L V8, Air Ride suspension, and IRS upgrades.

       

      1.6k
      posts

  4. Chevy Colorado & GMC Canyon Forums

    1. 2023+ Colorado & Canyon (3rd Gen)

      Discussion, news, and technical help for the 2023+ Chevy Colorado and GMC Canyon. Covers the 2.7L TurboMax engine, ZR2, AT4X, and all 3rd Gen updates

      148
      posts

    2. 2015-2022 Colorado & Canyon (2nd Gen)

      The central hub for the 2nd Generation twins. Discussion, news, and ownership experiences for the 2015-2022 Chevy Colorado and GMC Canyon.

      3.6k
      posts

    3. 2004-2012 Colorado & Canyon (1st Gen)

      The original GMT355 platform. Technical discussion and mods for the 2004-2012 Chevy Colorado, GMC Canyon, and Isuzu i-Series. Also covers the Hummer H3 & H3T.

      449
      posts

  5. 2014-2019 Full-Size Trucks & SUVs (K2XX Platform)

    1. 2014-2018 Silverado 1500 & Sierra 1500

      The main discussion hub for the half-ton K2XX. Includes the 2019 Silverado LD and Sierra Limited legacy models 

      621.4k
      posts

    2. 2015-2019 Silverado HD, Sierra HD & Medium Duty

      The heavy haulers. Discussion for the 2500HD / 3500HD and the 4500HD / 5500HD / 6500HD chassis cabs.

      42.6k
      posts

    3. 2015-2020 Tahoe, Suburban, Yukon & Escalade

      The K2XX SUV family. Discussion for the Tahoe/Suburban, Yukon/XL, and Cadillac Escalade. Covers Magnetic Ride Control and Air Leveling.

      13.3k
      posts

  6. 1999-2013 Silverado & Sierra (GMT800 & GMT900)

    1. 1999-2013 Silverado 1500 & Sierra 1500

      The daily drivers. Discussion for the half-ton GMT800 and GMT900 trucks. Troubleshooting 4WD, ABS modules, and rocker panel rust


       

      139.7k
      posts

    2. 2000-2014 Silverado HD & Sierra HD

      The workhorses. Discussion for the 2500HD and 3500HD heavy-duty trucks. Covers the 2014 HD transition year.

      29.3k
      posts

  7. GM Crossovers & SUVs

    1. 2025+ Chevy Equinox & GMC Terrain

      The all-new generation. Discussion for the 2025 Equinox (LT, RS, Activ) and 2025 Terrain (Elevation, AT4, Denali). Focus on the new rugged styling and Google Built-In technology.

      9
      posts

    2. 2024+ Traverse, Acadia & Enclave

      The new generation of 3-row haulers. Discussion for the 2024+ Chevy Traverse (Z71/RS), GMC Acadia (AT4/Denali), and the all-new Buick Enclave. Tech talk for the 2.5L Turbo-4 and Super Cruise.

      11
      posts

    3. Classic Equinox & Terrain (2005-2024)

      Discussion and technical help for previous generations of the Equinox and Terrain.

      1
      post

    4. Traverse, Acadia, Blazer & Enclave (Pre 2024)

      The mid-size and 3-row headquarters. Technical discussion and news for the 2023 and older Chevy Traverse, Blazer, GMC Acadia, Buick Enclave, and Cadillac XT5/XT6.

      515
      posts

  8. Classic Chevrolet & GMC Pickup Truck Forums

    1. Chevrolet Express & GMC Savana

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

      389
      posts

    2. 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.

      13.9k
      posts

    3. 1980-2009 Chevrolet Kodiak and GMC Topkick

      Discussion for the medium-duty commercial Kodiak and Topkick.

      225
      posts

    4. 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

    5. 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.

      320
      posts

    6. 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.

      124
      posts

    7. 1982-2005 Chevrolet S-10/Blazer & GMC S15/Sonoma/Jimmy

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

      1.6k
      posts

    8. 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.

      169
      posts

  9. Member Builds & Introductions

    1. Member Build Threads

      The transformation from stock to custom. Document your build, modification by modification. One thread per truck.

      20.5k
      posts

    2. 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.

      24.8k
      posts

  10. Technical & Advanced

    1. Ask A GM Technician

      Stumped? Post your question here for GM Master Techs. Serious inquiries only. Please include your VIN and codes. 

      29.8k
      posts

    2. Towing, Hauling & Hitches

      Payloads, 5th wheels, and weight distribution. Ensure your truck is rigged right to pull the load.
      8.4k
      posts

    3. Audio, Electronics & Software

      The digital dashboard. Discussion on Google Built-In, Apple CarPlay, Android Auto, OnStar, and aftermarket sound systems.

      12.3k
      posts

    4. Tires, Wheels & TPMS

      Fitment guides and rubber reviews. KO2 vs. Wildpeak? Chrome vs. Black? Discuss universal tire and wheel topics here.

      16.1k
      posts

    5. Maintenance, Oils/Fluids, Detailing & Rust Prevention

      From the engine bay to the paint booth. Discuss oil analysis, fluid intervals, ceramic coatings, car wash techniques, and fighting rust. Keep your truck running strong and looking showroom fresh.

      20.3k
      posts

    6. Advanced Drivetrain, Suspension & Tuning

      Deep dives into mechanical theory. Gear swaps, transmission rebuilding, solid axle swaps (SAS), and HP Tuners / ECU calibration.

      16.2k
      posts

    7. DIY Guides & Reference Library

      Installations, Maintenance, and Repairs.

      2k
      posts

    8. Article & Review Archive (Pre-2019)

      A legacy collection of GM-Trucks.com original news, road tests, and product reviews published prior to 2019.

      14.6k
      posts

  11. Marketplace & Purchasing Advice

    1. Classifieds (Buy/Sell/Trade)

      The trading post. Buy and sell trucks, parts, and accessories. Please use caution and follow listing rules.

      55.4k
      posts

    2. Dealerships, Pricing & Orders

      Getting a good deal? Discussion on OTD pricing, interest rates, dealer markups, and order tracking.

      4k
      posts

    3. Vendor & Product Reviews

      The good, the bad, and the ugly. Reviews of aftermarket parts and experiences with forum vendors.

      1.3k
      posts

  12. The Lounge & Lifestyle

    1. The Off-Topic Bar

      Sports, news, jokes, and life. If it doesn't fit anywhere else, it goes here. (Keep it civil).

      93.9k
      posts

    2. Future GM News & Rumors

      General industry news, spy shots of non-truck GM vehicles, and rumors about what's coming next.

      11k
      posts

    3. Racing, Strip, & Track

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

      1.5k
      posts

    4. Garage, Shop & Tools

      The place for projects. Snow plowing, landscaping, tools, garage heating, and home improvement.

      3.4k
      posts

    5. Hobbies, Tech & Outdoors

      Hunting, fishing, 3D printing, and photography. The place for your other passions.

      11.6k
      posts

    6. The GM-Trucks.com Garage - Vehicle Testing & Product Reviews   (18,774 visits to this link)

    7. General Motors Product and Industry News   (21,498 visits to this link)

    8. Meetups, Events, & Gatherings

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

      3.2k
      posts

  • Latest Articles

  • Posts

    • Texas Gasser
      Travel Trailer 2024 2500 HD 6.6 Gas Engine ?

      By Texas Gasser · Posted

      My truck is a 2024 2500 LT crew cab with the 6.6 gas engine and 10 speed trans.  It has a payload of 3578 lbs.  We pull a 22' Grand Design 17MKE that has dry weight of 5006 lbs. and a gross weight of 6395 lbs.  The trailer weighs about 5800 lbs. when loaded up with all the gear.  I don't fill the water tank for travel as most of our trips are to state parks that are within a day's drive.  Depending on the wind I get anywhere from 7.5 to 9 mpg.  I do use a weight distribution hitch (WDH) and have no problems with sway or being pulled/pushed side to side by 18-wheelers passing by me.  The trailer is about the same length of the truck so that helps a lot.  I say that because we traded in our 33' Grand Design 2670 MK (7800 lbs. loaded with gear) and using the same WDH, it would get pulled side to side by big trucks passing by me. It was not bad, but you needed to stay alert and know when a big truck was pulling up beside you.  I got about 7 to 8 mpg pulling that trailer.  I normally drive about 65 to 67 mph when pulling.  Overall, I love the payload capability of the truck as I doubt I will ever get close to its limit and I love the stability it offers over a half ton truck while pulling a trailer.  I have just over 30000 miles on the truck and have not had any issues.  We live in Texas where it is relatively flat, just windy. 
    • Chuck FB
      Gas Prices

      By Chuck FB · Posted

      I will say though that the 5.00 a gallon for only one fuel stop while on the Number 1, that privilege of driving from the point of Paso Robles ( where I fueled up before crossing to the coast ) and all the way up ... across the Golden Gate where I stopped and walked on the bridge ( and someone jumped off the bridge opposite the side I was on ... never saw it happen but the tow truck/paramedic told me ) and continued on north back onto No 1 and all the way up to where it connects to 101 and also explored some of the Red Woods although had been through some of that before. The fantastic view of that scenic ocean route was most certainly worth the extra dollars I spent on fuel. Just prior to that I had driven through Death Valley and that was some experience in the middle of July, then spent a couple of days in Yosemite and hiked to the top of Half Dome. The summer of 2007 was very memorable for what I saw and experienced in California.
    • AndrewF
      Travel Trailer 2024 2500 HD 6.6 Gas Engine ?

      By AndrewF · Posted

      Really depends on what extent the towing is.  Are you going across the country on highways or to fairly local campgrounds?  If you're just local towing then I wouldn't derate your truck much, just make sure the weight of your trailer and equipment stays below your limit.  Which for my truck is 14500lbs bumper pull.  Yeah it will work hard when you're over 5 figures in weight but who cares if it is just say 50 miles.    In my opinion the main thing with towing campers is wind resistance.  My 3200lb single axle camper tows fairly hard for what it is due to the wind.  But then if I use my truck to tow a family members 8000lb camper it doesn't really feel any different as wind resistance is similar. I've also towed a 5000lb airstream and it barely felt like anything was there.
    • Atlas
      Wow I'm in a pickle. (Broke down truck) and a story.

      By Atlas · Posted

      I think the excitement has run its course. Or, probably need a break from the truck for a few days.   Win some, lose some, again. There was still a coolant weep from the front of the engine. This time it was one of those worm-drive hose clamps on the upper hose connecting to the water neck. There's a reason the factory doesn't use those type of clamps; they suck. The hose is all distorted and flared at the end from someone over-tightening it. The water neck just needed to be cleaned, hose seated, and have a *good* hose clamp put on, if the hose wasn't so mangled.   Thought I'd kill two birds with one stone and try to diagnose the EGR issue. It's likely a failed EGR but before I spent $85 on the part I wanted to make sure ports weren't clogged or the pintle wasn't stuck. It was kind of a bugger to remove with the upper intake installed. Re-install (because I wanted to drive it) proved more difficult.   Per the stack of service paperwork, the EGR has already been replaced 4 times since 1996.   It would reason, then, that the EGR flange on the lower intake manifold has had its share of techs trying to work quickly and maybe one of them seated a bolt slightly cross-threaded at one time. The bolt didn't come out without significant effort and tried as I did, it wouldn't go in without significant effort. And then, the mounting ear on the right side of the EGR (lower intake casting) cracked, and crumbled off. $%&@!!!   I hate everything. Or, at least, I did in that moment. I was pretty calm, considering. This is what older, junky vehicles do. They nickel and dime their owners, piss them off, and things break that shouldn't break because of shoddy design/workmanship, poorly done repairs.   If I want to make it right, I'll need to replace the lower intake manifold and basically re-do everything I spent days doing. At least it should go quicker this time, right?! Looks like a lower intake (used/junk, of course) will run me about $150.   Once I get the new EGR, I'll see if I can bolt it up snug enough to verify proper operation, and if it solves the persistent CEL that sets on decel for EGR flow, I'll know I'm back on the right track. And then I can decide how to proceed.   Also, an idler pulley has given up. It began squeaking in pain on startup. It's clear this truck hasn't been thoroughly driven in a long, long time as things are just letting go and shaking out. I may have given it the beans once or twice to make sure my intake gaskets were doing their job. Flog an old vehicle, expect what it gives in return.    
    • GMC4Zee
      Trailer TPS Sensor Question Rim Size

      By GMC4Zee · Posted

      Thanks for the info but wow, these are pricey! $100 apiece. A full set of smaller ones can be had for less that the cost of one of these. Gotta be a cheaper option out there but I have yet to find it. I don't want to use grommets as I can see leaking in my future. Now that I am looking at it, I might be able to just get the valve stem and modify the sensor to fit. Looks like I can just modify the hole a bit to adapt.

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