No matter what 4x4 you have, how new it is, or what axles are in it, you’ll eventually end up with a leaky pinion seal. And rightly so, these seals are in the most abused locations on your 4x4. They ...

Every diesel truck on the road today has a differential and ring and pinion gear set in the rear axle. Four-wheel-drive trucks add a second set of gears and another differential to the front axle to ...

The now-standard Ford 9-inch rearend gives you a "means business" aura. It's strong, it looks good, there are endless new and used parts available for it and, most importantly, people think you're ...