Upon adding 33-inch-tall tires, a flexy long-arm suspension system, and enough camping essentials to forget home while on the trail, our donor's '05 Jeep Rubicon Unlimited felt a bit on the sluggish ...

The Jeep 4.0L engine found in TJs, XJs, ZJs, and WJs is a trusty powerplant, and the '91-and-newer high-output versions make respectable power for a long time if well cared for. We recently ran across ...

When most people think of Jeeps, they picture rugged vehicles built to go just anywhere. Of course, none of that would be possible without a reliable engine under the hood. When it comes to mechanical ...

Professionally built 2006 Jeep Wrangler Unlimited (LJ) Rubicon, customized by Jason at Absolute Offroad. With a solid 4.0L ...