Rock Hard 4x4 is very proud to offer the first ever bolt-in C-Pillar Brace Kit for the Jeep Wrangler JK 4DR 2007 - 2018.
Please Note: Test fitting is required prior to powder coating / paint. While we make every effort to insure the highest quality parts arrive for install, Rock Hard 4x4 cannot be held liable for any coating expenses on cage components.
Brace the vulnerable rear passenger and cargo area of your Jeep Wrangler JK Unlimited with our C-Pillar Brace Kit! ZERO welding required and minimal drilling. Our C-Pillar Brace Kit uses a 1/4" thick steel wheel well mounting plate, .120" wall, 1-3/4" OD tubing, and heavy duty hardware to securely install in your Jeep.
- Removal of hardtop / soft-top NOT required.
- Can be installed over or under carpet.
- Can be installed over or under rear wheel well liner.
The RH4x4 Jeep bolt-in Sport Cage is the cornerstone of Rock Hard 4x4 parts. Developed first for the Jeep Wrangler TJ and proven after years and years of trail use and abuse - the RH4x4 bolt-in Sports Cage has become one of the most popular safety upgrades in the Jeep aftermarket industry.
Our proprietary locking collars are arguably the safest and most secure way to not only strengthen your Jeep's cabin but also provide you and your passengers the peace and mind that comes with a premium cage system. No other bolt-in cage comes close to the fitment, quality, and durability of our system.
Protected by Patent US6908107 and used in all our cage systems, our locking collars are the foundation for our Ultimate Sports Cage upgrade. Magazine editors, trail guides, wheelers from across the world, and even competitors have turned to our bolt-in cage for over a decade for their own vehicles. The strength our collars provide is inherent in how they couple our cage components together.
Our patent not only protects RH4x4 from domestic and overseas "knock-offs" but also gives you the peace of mind knowing we stand 100% behind our product. Our registration gives you the exact definition and purpose for our cage components. We encourage you to read our patent registration and see just how much thought, time, and care was put into our system. Why has no other manufacturer patented their cage system? Either its a copy of another system, or they simply don't feel confident enough in their development. Don't purchase a component that was simply meant to compete in a market, purchase a product that was born to create a market.
Success stories of our bolt-in Sports Cage are not hard to find. Virtually every Jeep forum online contains detailed user-installed threads and photos of how DIY'ers were able to not only install our cage but enjoy it run after run. This is THE Jeep cage.
With our patent secured over a decade ago we began production on our cages. Each collar, cap, and tube component in our system is produced in house. This gives us total control over manufacturing to ensure that once a system leaves our facility and gets installed in your Jeep, we know it will continue to uphold our sterling reputation.
Our locking collars and caps are solid 1/2" thick CNC machined steel and produced in house. Each cap is secured to it's matching collar with six 5/16" x 1" grade 8 socket head cap screws. Once a cap is secured to it's collar it becomes a solid, unbreakable joint. This means assembly and disassembly is achieved without welding or cutting which could potentially damage your Jeep's interior or expensive cage powder coat/paint finish.
Our tubing, which connects our collars, is made from extremely strong 1 3/4" .120 wall steel tube and are precisely cut and fit for your Jeep model. There is no guess work when it comes to which component installs where. Each collar is expertly hand welded to it's matching tube section and can only install one way.
Ease of Installation
Thanks in part to our collar design there is no need to ship you a completely welded together cage system that requires major vehicle disassembly. Our cage ships in a complete package that includes the individual components that assemble into our sports cage. Simply powder coat or paint the color of your choice and use our easy to follow instructions to complete your own install.
What comes in every kit:
- C-Pillar Brace Kit
- Collar Caps
- Installation Instructions
Three Reasons Why:
- Patented design
- Decades of proven strength
- Unmatched quality and fitment
There is nothing wrong with a race ready, NHRA/JeepSpeed/NASCAR/WRC/F1 approved, sonic tested, x-ray verified, high velocity impact tested, fully welded cage custom designed for your individual race vehicle. Except of course, the unaffordable price, massive vehicle disassembly, user unfriendly nature, and it goes without saying - non DIY install requirements. Those are just a few of the reasons we prefer our bolt-in method. Our RH4x4 bolt-in ready cage eliminates the headaches of a fully welded in cage for the wheeler from all walks of life yet provides an unbelievably strong, proven cage design.
How secure is the RH4x4 locking collar?
If we didn't believe 100% in our collar design we wouldn't run it in our own rigs. It's patented design provides an unbreakable joint and you can feel confident will keep you and your passengers safe for a lifetime of trail use.
Can I reinstall my factory cage padding?
Do I have to remove my hard top or soft top prior to installing this cage?
No! You can install this without removing your hard or soft top.
Does this work with the factory soft top?
Yes. Some door molding trimming may be required on soft top door surround. Has not been tested on Bestop Trektop or NX systems.
Is any welding required?
No. Our locking collars allow for a DIY no-weld, truly bolt-in install.
What finish is available?
Our cage systems ship in a raw, bare metal finish. This prevents potential shipping damage but more importantly allows you the freedom to select your own color locally. Continue a color theme into your cabin for a more unique, your Jeep look!
Where is this mount made?
This product, like all RH4x4 parts, was designed, developed, tested, manufactured, and if applicable, powder coated, and shipped in the USA. And we don't mean the 75% legal standard to be able to say Made in USA. We are 100% Made in the United States of America!