Without a doubt, Ford's 9-inch axle assembly has been the No. 1 choice for a performance rearend for a long time. The reasons were obvious enough—they were strong, plentiful, and affordable. A wide ...

Last month we provided an overview of the parts we'd use to build a Spidertrax Spider 9 rear axle assembly for our Jeep Cherokee prerunner/rock-crawler. With parts in hand we traveled to Tri County ...

With over a century of 4x4 truck history, there’s been a lot of time for innovation. Light trucks use one fixed and one steering axle to drive four tires. Over the decades, changes have been made to ...