Rock Jock Suspension Rod End Bearing

Rock Jock Johnny Joint Rod Ends: The Off-Road Standard

When it comes to suspension rod end bearings for serious off-road use, few names carry as much weight as Rock Jock 4x4. Founded by John Currie — whose family has been passionate about Jeeping for decades — Rock Jock set out with a clear mission: to engineer parts that could actually keep up with the demands of technical terrain. The Johnny Joint rod end has been a staple in the off-road industry since 1996 , and it remains one of the most trusted suspension rod end bearings on the market today.

What Makes the Johnny Joint Different?

Originally designed to solve the limitations of standard heim joints and rubber bushings, the Johnny Joint offers superior articulation without the noise and harsh impact associated with metal-on-metal spherical bearings. That balance of performance and livability — aggressive off-road capability without the harshness on the pavement — is what sets Rock Jock apart from generic rod end options.

John Currie's proven formula delivers a reliable, greaseable, rebuildable joint that is capable of dramatic articulation in off-road applications, while still providing smooth, cushioned, quiet performance during on-road use. For builders who want longevity out of their suspension components, the ability to regrease and rebuild rather than replace is a significant advantage.

A Versatile Range of Sizes and Configurations

Rock Jock offers Johnny Joint rod ends in a wide variety of configurations to suit nearly any build. They are available as forged rod ends with various right-hand and left-hand thread sizes ranging from 3/4 in. up to a massive 1-1/2 in. thread, with weld-on versions available for fabricators. Specialty joints — including polished stainless steel, long-body, bent forgings, and application-specific machined joints — are all available for custom builder use.

All sizes offer a standard or narrow-width joint body, which provide different levels of overall articulation range — 30-plus degrees on a standard body and up to 40-plus degrees on a narrow body. Whether you are building a custom 4-link, replacing worn control arm ends, or upgrading factory axle housing pivots, there is a Johnny Joint designed for the job.

Competition-Proven Performance

Rock Jock's rod end bearings aren't just shop-built theories — they have been validated at the highest levels of off-road competition. In 2001, John Currie took home the 1st place trophy in the Extreme Rock Crawling Championship Series in a RockJock-equipped Jeep TJ Wrangler — the first of many victories for John and various Rock Jock–equipped vehicles in rock crawling, Ultra 4, and desert racing categories. That racing heritage directly informs the engineering philosophy behind every Johnny Joint rod end in Rock Jock's lineup.

Whether you are fabricating a custom 4-link suspension, building a long-arm kit, or simply replacing worn-out ends on your current control arms, these joints provide the reliability and range of motion necessary for technical rock crawling and daily driving alike. Browse the full selection of Rock Jock suspension rod end bearings to find the right fit for your application.