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Introductions

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TECH Members ONLY

TECH Members Back room
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Specialty Forums

911 Problems Forum

Truck won't start or drive? Post here!
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Wheels & Tires

Discuss what wheels & tires are right for you.
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VIN Check

A place to check out the past of your Duramax. Please be patient as the site VIN checkers are volunteer.
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Alternative Fuels Diesel Additives Lubricants

Discussion of diesel, its various additives, oils, lubricants and alternative fuels IE: Bio-Diesel ect...
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Maintenance

Discuss scheduled maintenace, capacities, filter part numbers, etc.
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Drivetrain

Discussion on gearing, CV joints, driveshafts, axles, brakes, etc.
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Transmission Shop

Discuss the Allison OEM, aftermarket, and the ZF-6.
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Gauges, Electronics and Wiring.

A place to discuss electronic / wiring issues and what gauges, audio, video, nav systems, lights, ect. are right for you.
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EFI Live

Place for your EFI questions
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Competition

Discuss Drag Racing, Sled Pulling, and Dyno Event setup, technique, and results.
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How To's, DIY and Write ups

DuramaxForum How To's, Do it Yourself Guides, and other write ups. Only How TO post belong in this forum!!! If your NOT showing/telling us HOW TO then DO NOT post it here.
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Behind The Garage Door

For your garage / shop including tools & equipment
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Chevy / GMC truck Non Powertrain Forum Discussion of 01+GM truck topics not related to the Powertrain, interior, suspensions, body, ect.

2020+ (Non Powertrain)

Discussion of 2020+ topics not related to powertrain
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2017 - '19 (Non Powertrain)

Discussion of 2017 - '19 topics not related to powertrain
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2011-2016 (Non Powertrain)

Discussion of 2011-2016 topics not related to powertrain
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2007.5 + (GMT 900) Non Powertrain New Body Style

Discussion 07.5 - 2010 Topics Not related to the Powertrain, interior, suspensions, body, wheels, tires, ect.
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2001 - 2007 (GMT800) Non Powertrain

Discussion of 01 to 07.5 Topics Not related to the Powertrain, interior, suspensions, body,wheels, tires, ect.
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2015 and up Canyon / Colorado (Non-Powertrain)

Discussion of '15 and up Topics Not related to the Powertrain, interior, suspensions, body,wheels, tires, ect.
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Canyon / Colorado XLD28 Forums

2016+ XLD28 Duramax Powertrain

Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission, Etc.
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2016+ XLD28 Performance Parts Discussion

Discussion of Performance Parts For the '16 and up XLD28 Duramax Trucks No Advertising
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Chev / GMC Duramax 2020+ LM2 Forums

2020+ LM2 Duramax Powertrain

Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission, Etc.
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2020+ LM2 Performance Parts Discussion

Discussion of Performance Parts For the '20 and up LM2 Duramax Trucks No Advertising
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Chevy / GMC Duramax 2017+ L5P Forums

L5P TSB (service bulletins, recalls, updates)

Postings of Tech Service info for any New L5P engine issues.
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2020+ GM T1 Platform Powertrain

Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission, Etc.
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2020+ GM T1 Platform Performance Parts Discussion

Discussion of Performance Parts For the 2020 and up L5P Duramax Trucks No Advertising
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2017-19 GM T-K2 Platform Powertrain

Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission, Etc.
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17-19 GM TK2 Platform Performance Parts Discussion

Discussion of Performance Parts For the '17 and up L5P Duramax Trucks No Advertising
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Chevy / GMC Duramax 11-16 LML Forums

11-16 LML Duramax Powertrain

Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission, Etc.
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11-16 LML Performance Parts Discussion

Discussion of Performance Parts For the 2011 to 2016 LML Duramax Trucks No Advertising
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Chevy / GMC Duramax 07.5-10 LMM Forums

07.5-10 LMM Duramax Powertrain

Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission, Etc.
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07.5-10 LMM Performance Parts Discussion

Discussion of Performance Parts For the 2007.5 to 2010 LMM Duramax Trucks No Advertising
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Chevy / GMC Duramax 06-07 LBZ & LLY Forums

06-07 LBZ & LLY Duramax Powertrain

Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission, Etc.
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06-07 LBZ & LLY Performance Parts Discussion

Discussion of Performance Parts For the 06-07.5 LBZ/LLY Duramax Trucks No Advertising
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Chevy / GMC Duramax 04.5-05 LLY Forum

04.5-05 LLY Duramax Powertrain

Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission, Etc.
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43.1M
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04.5-05 LLY Performance Parts Discussion

Discussion of Performance Parts For the 04.5-05 LLY Duramax Trucks No Advertising
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Chevy / GMC Duramax 01-04.5 LB7 Forums

01-04.5 LB7 Duramax Powertrain

Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission, Etc.
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01-04.5 LB7 Performance Parts Discussion

Discussion of Performance Parts For the 01-04 LB7 Duramax Trucks No Advertising
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Gm Diesel Non-Truck Section Discussion of GM Diesels Installed In Vehicles Other Then Trucks

Kodiak & Topkick Forum

Discussion of Medium Duty
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Get In the VAN!!!

Discussion Of GM Diesel Vans..... And whatever TheStepChild wants
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Suburban and SUV

Discussion of Diesel Installed SUV's
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Duramax Engine Swaps

If you have installed a Duramax in anything it was not designed for, Post it here.
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Pre Duramax Discussion

6.2L Diesel Forum

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6.5L Diesel Forum

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Non Duramax Discussion

Diesels

Discussion of anything diesel powered. No Duramax.
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Gas Burners

Discussion of anything Gas powered.
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Classifieds Area You must have a post count of 25 before you will be allowed to post in the For Sale section of the classifieds. Duramaxforum.com, and it's moderators/staff are not responsible for anything that is traded, sold, stolen, not payed for, or anything else that happens in this section. If you choose to trade or buy from anyone on this forum you do so at your own risk. Please use good judgment and common sense when you enter this section. There are lots of good people in the world but there are just as many or more that would just as soon rip you off. BUYER BEWARE!!!!!!

For Sale Section

Sell your used trucks, parts, accessories. PRIVATE SELLERS ONLY.Seller must own items listed for sale. Requires a post count of 25 before you can post. Sellers MUST post a price if you list something. This forum is not E-Bay.
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Looking For/ Wanting To Buy

Looking for something? Post a wanted ad here!
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Great Deals

Have you found a Great Deal? This forum is created to share and find discounts, sales, and other deals found online. (No Commercial Vendor or Private Party postings allowed)
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CraigsList / eBay Finds

Find something cool relating to GM diesel trucks on eBay? Post it!
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Trade / Barter

Have something to Trade? Skills to Barter? Post an ad here!
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Canada, eh

For Sale - Canada
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Vendor Member Section Want to Grow Your Business? Learn more about becoming a Supporting or Premium Vendor

Vendor Deals

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Vendor Jungle

Sponsors place to promote their products, sales, deals and more.
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CARiD.com

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DalesSuperStore.com

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Diesel Power Products

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Diode Dynamics

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Form Lighting

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Lincoln Diesel Specialties

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Rancho Suspension

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RockAuto

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Screamin Diesel Performance

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Strictly Diesel

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Regional Events and Rally's Truck Meets, Dyno Days, Drag Racing, Sled Pulls, Area member affiliations (6.6Mafia)

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Anything that you deam worthy of a national event. Your event may be moved to another region at our discretion.
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Southeast Events

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Canada

The whole thing
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Latest Posts See all new posts
  1. I have a 4wd lly stock except exhaust and a turbo mouth piece with a limp mode issue only in fifth gear and is getting a fifth gear ratio code between 70-75. 65ish if loaded. I’ve had it in three shops for a few months including the Chevy dealer. Everyone says transmission isn’t my problem...
  2. 06-07 LBZ & LLY Performance Parts Discussion
    06' LBZ with S&B intake, 3"down pipe, 4"exhuast with muffler, and EFI live w/DSP5 switch.. T The truck was stock when I purchased it. I've had it for a couple years, and had it tuned and added the aftermarket items shortly after purchasing it. The trucks previous owner had a major diesel repair...
  3. 2020+ GM T1 Platform Powertrain
    Curious if anyone who tows heavy (12k plus) with a 2020 up L5P is using (burning) any oil and if so, how much and what brand you use. I'm not, but on another forum I belong to there is a guy who is. He's saying if he leaves it in drive and lets the transmission do it's thing he uses oil but, if...
  4. Build Threads
    have a 2015 LML, looking to get 750+ hp out of it as a daily driver. wondering what all internally i would need to do to have is running good and reliably. bought it deleted and tuned. going to revert to the Cp3, have the fass 165gph, going to buy the 64mm vvt from duramax tuner. i’ve read a few...
  5. 2001 - 2007 (GMT800) Non Powertrain
    11•13•18. I replaced all my glow plugs yesterday and reset the engine light. Truck started and drove fine. 11•14•18. I placed my key in the ignition and the light came on. I then turned the key and everything went “dark”. No lights on dash, no interior lights and I have lost all electrical...
See all new posts
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