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General Topics

Introductions

Introduce yourself here
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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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42.9M
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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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29.9M
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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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33.1M
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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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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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57.3M
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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

Deals Contests and Give Aways You must be a supporting member or have 25 post to participate in the contest or giveaways.
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Xtreme Diesel Performance

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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)

National Events

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

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Southwest Events

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North Central Events

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South Central Events

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Great Lakes Events

IL - IN - MI - OH - WI
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Northeast Events

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Mid-Atlantic Events

DE - DC - KY - MD - NC - TN - VA - WV
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Southeast Events

AL - FL - GA - SC
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Canada

The whole thing
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Latest Posts See all new posts
  1. Several months back my gmc started telling me phone unavailable and had the red light on the rear view mirror. Shortly after that my steering wheel controls where no longer working properly the one that allowed me to make changes. The language randomly landed on French I believe and the only way...
  2. I am on my 2nd oil change ~13500 miles and I noticed a small drip of ATF on the bottom of the transmission on what looks like a little domed access cover? Anyone see this before or know why it would be doing it?
  3. 11-16 LML Performance Parts Discussion
    Hi! new here, im sure this has been posted somewhere but i could not find a forum search to wittle down what i see. sooo the tcm went in my truck last night. classic tcm, no power, wont shift, park and drive indicator not working right etc. code reader is saying it cant communicate with the...
  4. Anyone have a line on software for programming and Changing parameters on the LM2 pcm? We're beginning a build, 1967 chevy truck, 2021 lm2 duramax with 10 speed trans. Any and all info welcomed for this offroad build. Anyways this is where it starts, I need a way to manipulate this pcm to run...
  5. 11-16 LML Duramax Powertrain
    I know people have posted about this before, I just wanted to post my short review of the BiScan GM plugin for Torque pro. The app costs $29.95 on Google Play, in addition to the $5 for Torque Pro. I'm using it with an Obdscan MX bluetooth adapter and a Google Pixel 2 phone. I was looking for...
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