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Tech

The 8-Lug Magazine Tech section is made up of do-it-yourself exterior and interior customizations, diesel performance upgrades, Duramax, Power Stroke and Cummins diesel engine modifications, tuning turbo diesel engines and other tech-related information pertinent to your custom diesel truck.
How to Clean a Stack of Duramax Cooling Cores - Cleaning the Stack How to Clean a Stack of Duramax Cooling Cores - Cleaning the Stack
By Rick Sosebee
If you're feeling the heat then it may be time to clean the stack of cooling cores in your Chevy truck's powerplant.
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RevMax 68RFE Signature 1000 Transmission Upgrade RevMax 68RFE Signature 1000 Transmission Upgrade
By Jason Gonderman
As the number of 6.7L Cummins–equipped Rams on the road increased, so did the amount of people looking to modify them.
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2015 GMC Sierra 2500HD CST Suspension 8-inch Lift Install 2015 GMC Sierra 2500HD CST Suspension 8-inch Lift Install
By Patrick McCarthy
CST offers a full line of upgrades that fit 2015 HD trucks, including just about every bell and whistle you can imagine.
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Ratings, Sizing, Construction and Maintenance - Tire Basics Ratings, Sizing, Construction and Maintenance - Tire Basics
By Mike McGlothlin
The tire market is a huge industry and, in many ways, it’s as diverse as the uses we have for our trucks. Mud-terrains allow the off-roader to navigate rugged terrain and provide a tough look.
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Tips for Great Rear Brakes - Braking Power Tips for Great Rear Brakes - Braking Power
By Rick Sosebee
Stopping a heavy fullsize Chevy 2500HD truck requires a lot of braking power. This is especially true if you tow with the workhorse or have bigger, heavier aftermarket wheels and tires.
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2004 Chevy 2500HD - Off Road Tough Fab Fours Bumpers Install 2004 Chevy 2500HD - Off Road Tough Fab Fours Bumpers Install
By Rick Sosebee
Getting the most out of our ’04½ Chevy 2500HD has been the goal of this project build, which meant adding a tough set of bumpers was next on the to-do list.
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How To Repair Paint Scratches, And Nicks, And Chips! Oh, My! How To Repair Paint Scratches, And Nicks, And Chips! Oh, My!
By Monica Gonderman
It’s a rough life being a truck, and there’s no denying that their exteriors take a beating from daily driving, off-road use, grocery store parking lot visits, family life, and weather.
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Fuel Filter Basics Fuel Filter Basics
By Jason Gonderman
Clean fuel is key to a healthy diesel engine. Fuel filter replacement is one of the major maintenance items that is often neglected or overlooked entirely.
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2012 Ford F-350 Dualie - AFE Momentum HD Intake Install 2012 Ford F-350 Dualie - AFE Momentum HD Intake Install
By Mike McGlothlin
One of the first modifications we make to our trucks is the addition of a cold-air intake -- but what kind of power do we really stand to gain from this $300 investment?
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DiamondBack HD ATV Bedcover - Product Review DiamondBack HD ATV Bedcover - Product Review
By Rick Sosebee
DiamondBack makes an HD ATV bedcover and, in our line of work, we just had to have it. Due to the shortbed on our tester 2004 Chevrolet Silverado 2500HD truck, we opted for the rear loader.
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We often find that the best way to become proficient at something is to be fully immersed in it. It’s no surprise then that Casey Hutton would find her way into the world of competitive sled pulling.
2006 Dodge Ram 3500, 2006 Chevy Silverado 3500 and a 1999 Ram 2500
That kind of stuff only happens in movies. That’s what I thought, too, until it actually happened.
If you're feeling the heat then it may be time to clean the stack of cooling cores in your Chevy truck's powerplant.
Just like the interior of a closet has to have some method of organization, so does a truck bed.
An ideal work and play cargo setup that just requires one tool that can serve multiple purposes
Extang builds a truck that embodied the spirit of the working man
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