Gray Area

Breaking the Mold with a 3,600-lb, 1,800-hp 4×4 Ram When it comes to drag racing, lightness is king. Diesel 4x4s, on the other hand, are […]

The Perfectionist: A Customized '75 F-350

The Rural King When you’re 14, everything in the world around you seems bigger. When you’re 14 and your dad owns a diesel truck repair […]

Homegrown Highboy: The 7.3L-Powered '73 F-250

Classic Blue Rig What do you get when you combine a ’73 F-250 with an early Super Duty? How about a one-of-a-kind Highboy with modern […]
DW  CST

CST Kit: Lifting a 2015 GMC

When Javier Gomez bought a loaded 2015 GMC Sierra Denali to use as a shop truck for his business—Gomez Custom Wheels & Tires in Fontana, […]
DW  AXLE LEAD

11.5 AAM Rear Axle: Best Aftermarket Products

Diesel trucks are built to handle a lot of abuse, but diesel enthusiasts like us tend to push way beyond the manufacturer’s intended performance levels. […]
DW  AXLE LEAD

Ultimate Axle Build: Building A Super-Strong 9.25 AAM Front Axle for Your GM or Dodge (Part 2)

The independent front suspension system and 9.25-inch AAM axle delivered in 2001-2010 GM trucks is great at providing a smooth ride on the road, but […]
2. The basic transmission will need to be bolted to the transfer case for our 4x4 Ford.

Ford 4R100 Transmission Installation

In our last issue, we had Remac Transmissions, in San Dimas, California, go through a Ford 4R100 auto trans to make it better than new. […]