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Transmission & Drivetrain

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How to Service a GM Automatic Transmission
More on This 1964 “GMC” Installing Cragars and Skinny Whitewalls on our 1964 “GMC” Installing a Custom Glory Grille in Our 1964 “GMC” How to Tune Up a Small-Block Chevy, Part One How to Tune Up a Small-Block Chevy, Part Two We’re roundin’ third on our maintenance kick on Truckin magazine’s longest-running truck project. What
Jeremy CookJun 9, 2020

Latest Transmission & Drivetrain Articles

Truck Trend Network
Truck Trend Network Magazine
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Fixing the Dreaded GM “Pump Rub”
Owners of four-wheel-drive General Motors pickups from 1997 to 2010 should all be aware of the dreaded “pump rub” issue. It doesn’t matter if you drive a Silverado 1500, Sierra 3500, or even an Avalanche, if your truck has a transfer case, this story is for you. In short, the pump rub issue refers to
Jason GondermanJun 8, 2020
Truck Trend Network
Truck Trend Network Magazine
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Chevy 2500HD Rear Axle 4.56 Gear Install
It can be argued that there’s no bigger bang-for-the-buck performance upgrade than new axle gears. Auto manufacturers are tasked with building a vehicle that is optimized for both highway efficiency, comfort, and performance. Because of this, there’s going to be a trade-off of some sort. All too often, manufacturers lean toward efficiency over performance. Add
Jason GondermanMay 7, 2020
Truck Trend Network
Truck Trend Network Magazine
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Chevy 2500HD Allison Transmission Rebuild
When we first rolled our 2002 Chevy Silverado 2500HD into the bay at PPE Diesel’s shop in Montclair, California, we thought for sure the transmission was toast. Interestingly, upon inspection it was actually in relatively good shape despite likely having more than 200,000 miles on a truck that was pushed hard enough to melt a
Jason GondermanApr 30, 2020
Truck Trend Network how to
Duramax Tuner 2001 to 2005 Allison Six-Speed Conversion Kit
There’s an interesting thing about early Chevrolet Silverado and GMC Sierra trucks equipped with the Duramax diesel engine and Allison transmission. From 2001–2005, these trucks were equipped with a five-speed Allison automatic transmission. In 2006, the trucks received a big update, a “new” six-speed Allison transmission. The interesting discovery came after the new transmission was
Jason GondermanApr 29, 2020
Truck Trend Network how to
Chevy 2500HD Allison Transmission Teardown
When we started our 2002 Chevrolet Silverado 2500 Duramax project a couple years ago, we set out with a few goals in mind. We wanted the truck to be reliable, first and foremost. We also wanted to put between 650 and 700 hp to the rear wheels, and we wanted the truck to ride on
Jason GondermanApr 24, 2020
Truck Trend Network
Truck Trend Network Magazine
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How to Fix a Broken Halfshaft in 30 Minutes
Chevrolet has held fast to its dedication to the independent front suspension used on its pickups for decades. And why shouldn’t they? The ride is fantastic, it’s proven durable even on the HD pickups, and there’s rarely a complaint to be heard. However, as any good GM truck owner knows, at some point the front
Jason GondermanApr 16, 2020
Truck Trend Network
Truck Trend Network Magazine
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Banks Power Differential Cover
Unless you’ve still sporting a Motorola flip phone and relying on AOL dialup internet, you should be aware of both the existence of aftermarket differential covers and the YouTube video series from Gale Banks Engineering (aka Banks Power) regarding the negatives of the traditional flat-back aluminum covers. Not ringing a bell? Check out the links
Jason GondermanMar 23, 2020
Truck Trend Network
Truck Trend Network Magazine
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Mishimoto’s Ford F-150 Transmission Cooler
In a previous installment of our 2013 Ford F-150 Raptor build series, we talked in depth about installing Mishimoto’s new aluminum radiator for the Ford F-150 and specifically the Raptor. While we were working on that, we also set to installing Mishimoto’s new transmission cooler. This new cooler adds a significant amount of cooling ability
Jason GondermanMar 3, 2020
Diesel Power
Diesel Power Magazine
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Transferring Power: Replacing a Worn Out 47RE Transmission with a New RevMax Unit
One of the biggest problems facing diesel-pickup owners is the fact that over time, a truck’s mechanical components eventually wear out. However, with proper maintenance and sensible driving, an engine, transmission, turbocharger etc., all can provide many years of service in a truck. But when the time comes, as it did for the 47RE four-speed
John LehenbauerFeb 5, 2020
Truckin how to
2003 Chevy Silverado- Avoiding the Shaft
Most people don’t think about replacing the U-joints on their truck until they hear the telltale whine. That’s exactly what happened to us and Project Over/Under recently. With the truck basically complete, we’ve mostly been enjoying it, but we’ve also done a little fine-tuning. We changed out the exhaust—our former kit was rubbing in a
Jeremy CookJul 2, 2019
Truckin how to
Project Rebirth ‘71 Suburban Part 3: Steered Straight
With every project—especially older ones like our ’71 Chevrolet C10 Suburban—there are issues that can and will come up when you begin to tear into it. Last month, we brought you a second helping of tech on our ’71 Suburban, consisting of a Baer brakes install to go along with the QA1 coilover conversion and
Bryan FrossJun 26, 2019
Diesel Power how to
Getting the Ratio Right; Correcting the Axle Gear Ratio for Oversized Tires
In Part Two in a series Author talks about how and why to install the correct gear ratio for oversized tires on a ’01 Ford F-250.
John LehenbauerMar 14, 2019
Truckin
Truckin Magazine
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Project Over/Under: Part 8 - Gearing Up with Nitro Gear & Axle
As we’re nearing completion on our 2003 Chevy Silverado project, we have just a few more items to cover to make the truck function as good as it looks.
Jeremy CookMar 11, 2019
Truck Trend
Truck Trend Magazine
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Ford F-150 Mag-Hytec Differential Cover Install
We swap out the old factory diff cover on our Raptor for the sweet looking cast aluminum unit from Mag-Hytec!
Jason GondermanFeb 26, 2019
Diesel Power
Diesel Power Magazine
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Custom Oil Cooler Cures Hot G56 Transmissions
Custom oil cooling system eliminates overheating concerns with ’05.5-newer Ram HD G56 manual transmissions.
Bruce W. SmithNov 28, 2018
Diesel Power
Diesel Power Magazine
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How To Quiet A Noisy Ram HD Twin-Disc Clutch
Center Plate Snubbers Bring Quiet to a Twin-Disc Clutch
Bruce W. SmithSep 10, 2018
Diesel Power
Diesel Power Magazine
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Installing PPE’s Duramax Transmission Cooler
We install an upgraded transmission cooler from Pacific Performance Engineering to help keep our Allison transmission cool!
Jason GondermanAug 2, 2018
Diesel Power
Diesel Power Magazine
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Clamping Force; Installing the Clutch Masters’ FX1200 Twin Disc Behind a 5.9L Cummins
Installing Clutch Masters’ FX1200 Twin Disc Behind a 5.9L Cummins
John LehenbauerJun 14, 2018
Diesel Power
Diesel Power Magazine
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Installing the Last Automatic Transmission Your Hardworking Rig Will Ever Need
Article details installing an Allison 1000 six-speed automatic transmission in a 1995 Ford F-350.
KJ JonesMay 31, 2018
Truckin
Truckin Magazine
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B&M SuperCooler Transmission Cooler Install
B&M’s SuperCooler Takes the Fear Out of Towing
Edward A. SanchezMar 19, 2018
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Cool Trucks

Truckin Magazine
1969 Chevy C10- Texas LoHorn

They say everything is bigger in Texas, which meant in order to stand out Carlos Zapata needed to go bigger than anything he had ever done. Born and raised in Dallas, Carlos was part of a migrant worker family that did a lot of traveling. From picking oranges in Florida to working sugar beets in

Phil GordonJune 5, 2019

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