Rust Buster 2004-2006 Jeep Wrangler Unlimited LJ Rear Frame Control Arm Section RB4058

RB4058L
  • Unit price per 
Shipping calculated at checkout.


  • Fits 2004-2006 Jeep Wrangler LJ
  • Made from .125in. cold rolled steel (11 Gauge)
  • Upper and lower control arm mounts are made from .196 (7 Gauge) cold rolled steel
  • Product ships RAW and uncoated
  • Welding required to install

For Jeep LJ Wrangler owners, rust and wear can be a nagging concern, especially in the rear frame section. Enter the Rust Buster Rear Frame Section with Control Arm Mounts, tailored specifically for the 2004-2006 Jeep Wrangler LJ.

This isn't just another repair kit; it's a revitalization plan for your Jeep's framework. The genius behind this design is the way it meticulously marries with the existing structure. By simply slipping over the stock frame, it retains the factory dimensions and all the critical mounting points. And this isn't just a small patchwork; our repair kit stretches a significant 30 inches, stopping right before the rear axle.

Craftsmanship and durability are paramount here. The frame cap is forged from robust 11-gauge steel, providing the backbone for the repair. Complementing this are the upper and lower trailing arm mounts, constructed from even sturdier 7-gauge steel. The integrity is further solidified with factory welding, ensuring a seamless blend. Recognizing the importance of the trailing arm mounts, the kit includes new mounting hardware to fortify the connection.

Rust Buster didn't stop there. A brand-new sway bar mount, reinforced with an m10-1.5 weld nut, has been expertly attached to the frame kit. This thoughtful addition highlights the depth of detail that's gone into this design. And for those who've seen the detrimental effects of trapped moisture, there's a sigh of relief: a strategically placed drain hole promises to curtail rust's return.

But what truly stands out is the "EZ slip design." This eliminates the guesswork and hassle during installation. The repair section seamlessly slides onto the frame, perfectly aligning with all necessary holes and mounts. To achieve this level of precision, Rust Buster leverages cutting-edge CAD design, ensuring that each repair section is laser-cut to perfection, accurately formed, and finish-welded.

This repair kit isn't just about today; it's about the future. With Rust Buster's commitment, you're not only mending the present but also ensuring that your Jeep continues its adventures for years ahead. And with the assurance of our Limited Lifetime Warranty, you can tread confidently, knowing your Jeep's frame has the best protection in the business.


Installation Instructions
Downloadable PDF: RB4058 Installation Instructions.pdf 

Inventory Last Updated: Mar 01, 2024
California Residents: Prop 65 Warning

We Also Recommend


// -------------------------- ------------------------