Transmission & Drivetrain

When we added power to our 2009 GMC Duramax Diesel, we wanted to ensure the longevity of our transmission and differential by making sure they run cool enough.

Our 4R70W is a great testbed to show just what goes into an automatic transmission rebuild since it was used in such a wide variety of Ford trucks.

Giving our '67 Ford F-100 a renovated rear end.

If you're looking to add a tall lift and big tires to your Silverado or Sierra, a solid-axle swap kit by Precision Fabrication Plus is the best way to go.

Our ’04½ Chevy Duramax 2500HD often tows a trailer close behind—sometimes right in the thick of scorching weather.

There are several aftermarket clutch options to choose from for these trucks, but only a couple offer a substantial upgrade from stock without the cost, noise, driveability, and pedal effort considerations of a full-blown competition clutch.

Eight-lug trucks are built tough to perform under extreme situations and, in most circumstances, they offer many years of reliable use.

In this report, we focus our attention on Ford’s first completely electronic, light-truck automatic, the E4OD: a spin off of the hydraulically managed, three-speed C6.