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Introductions

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ROTM Forum!

Check out and Vote the Dmaxstore.com Rig of the Month (ROTM)!!!
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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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11.1M

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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10M

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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31.4K
10.6M

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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71.1K
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EFI Live

Place for your EFI questions
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Towing & Hauling

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86.7K
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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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19.6M
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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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556K
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2017 - '19 (Non Powertrain)

Discussion of 2017 - '19 topics not related to powertrain
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3.4M

2011-2016 (Non Powertrain)

Discussion of 2011-2016 topics not related to powertrain
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19.3M
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19.3M

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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10.3M
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10.3M

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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7.4M
21.9K
7.4M

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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96.1K
138
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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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132K
276
132K

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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123K
531
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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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361K
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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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144K
957
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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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6.2M
15.5K
6.2M

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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1.1M
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1.1M
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.
89.3K
32.4M
89.3K
32.4M

11-16 LML Performance Parts Discussion

Discussion of Performance Parts For the 2011 to 2016 LML Duramax Trucks No Advertising
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31.6M
115K
31.6M
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.
69.2K
23.4M
69.2K
23.4M

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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14.2M
63.8K
14.2M
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.
77.2K
25.4M
77.2K
25.4M

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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13M
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13M
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.
94K
32.2M
94K
32.2M

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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12M
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12M
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.
144K
44.7M
144K
44.7M

01-04.5 LB7 Performance Parts Discussion

Discussion of Performance Parts For the 01-04 LB7 Duramax Trucks No Advertising
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14.8M
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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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479K
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Get In the VAN!!!

Discussion Of GM Diesel Vans..... And whatever TheStepChild wants
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700K
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700K

Suburban and SUV

Discussion of Diesel Installed SUV's
469
367K
469
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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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474K
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6.5L Diesel Forum

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1.7M
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Non Duramax Discussion

Diesels

Discussion of anything diesel powered. No Duramax.
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3.6M
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Gas Burners

Discussion of anything Gas powered.
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3.1M
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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

IA - KS - MN - NE - ND - SD
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South Central Events

AR - KS - LA - MS - MO - OK - TX
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733K
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Great Lakes Events

IL - IN - MI - OH - WI
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1.1M
12.2K
1.1M

Northeast Events

CT - ME - MA - NH - NJ - NY - PA - RI - VT
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807K
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Mid-Atlantic Events

DE - DC - KY - MD - NC - TN - VA - WV
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767K
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Southeast Events

AL - FL - GA - SC
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553K
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Canada

The whole thing
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736K
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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6.3M
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6.3M

Looking For/ Wanting To Buy

Looking for something? Post a wanted ad here!
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3.8M
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3.8M

CraigsList / eBay Finds

Find something cool relating to GM diesel trucks on eBay? Post it!
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1.1M
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1.1M

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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214
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Vendors The supporting vendors in this section have made a commitment to the community and help support this website. Please consider using a supporting vendor for your future purchases and support the vendors who support you. For information on becoming a supporting vendor, please send an email to [email protected]

Vendor Jungle

Sponsors place to promote their products, sales, deals and more.
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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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560K

CARiD.com

821
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821
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DalesSuperStore.com

3
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3
457

Diesel Power Products

48
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48
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Diode Dynamics

817
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817
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Discount Tire

772
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772
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DMAXSTORE

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InjectorsDirect.com

5
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5
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Lincoln Diesel Specialties

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201
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Rancho Suspension

26
10K
26
10K

RockAuto

59
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59
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Screamin Diesel Performance

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Strictly Diesel

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80
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395K

Xtreme Diesel Performance

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Latest Posts See all new posts
  1. Just go to say my 2015 GMC Denali head lights SUCK!! Truck is new to me and i have only driven it at night a few times and its almost dangerous. What has anyone done for headlight upgrades?? I dont want to spend $1000’s. Im lookin at LED and HID replacement bulbs.
  2. 2017 - '19 (Non Powertrain)
    Well I guess I will be first at starting this thread, it was bound to happen. Please do not be a troll and hijack the thread with negativity, especially if you don't even own a dirtymax. Thanks for your participation and let's see them L5Ps doing work!
  3. 2020+ GM T1 Platform Powertrain
    Thumping sound heard at idle and increases with RPM as you drive. Can hear it easily when standing outside front or when listening near front wheel wells and from inside the truck. This is my 4th Duramax so I am familiar with all the ticking noise complaints but this is not a tick. Truck had...
  4. This is pretty much how it looked when I picked it up. Gonna start one of these things called a build thread. Bought the truck in Tremonton UT. From a small dealership who bought it at an auction earlier that summer. It was bone stock as far as engine was concerened. Came with 20" Foose...
  5. 01-04.5 LB7 Duramax Powertrain
    has anyone installed studs without removing the heads? i thought i heard of replacing one at a time and torquing down till each is replaced
See all new posts
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