If you own a Jeep Wrangler and are looking to improve off-road capability or on-road handling, Rubicon Express suspension parts are a common name in the aftermarket. The brand has been around since the 1990s and offers a range of components designed to lift, stabilize, and strengthen your Jeep’s suspension. This guide covers what Rubicon Express suspension parts are available, how they compare, and what to consider when building your suspension system.
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Rubicon Express RE1319 Coil Spring 2.5-3.5 in. Lift Front Pair Coil Spring
What Is Rubicon Express?
Rubicon Express (often shortened to RE) is a manufacturer of suspension systems and components primarily for Jeep Wranglers (TJ, LJ, JK, JL, and Gladiator). They are known for offering complete lift kits as well as individual parts like coils, shocks, control arms, track bars, and sway bar disconnects. Their parts are engineered for both trail performance and daily driving comfort.
Types of Rubicon Express Suspension Parts
Lift Kits
Rubicon Express offers several lift kit series:
- Standard Series: Budget-friendly lift kits that use spacer lifts or simple coil springs. Suitable for mild off-roading and fitting larger tires.
- Super-Flex Series: More advanced kits with progressive coil springs, fixed lower control arms, and longer sway bar links. Designed for better articulation and ride quality.
- Extreme-Duty Series: Heavy-duty kits with thicker coil springs, adjustable control arms, and upgraded track bars. Built for serious rock crawling and heavy loads (winches, bumpers, etc.).
Each series typically includes all necessary hardware, bump stop extensions, and detailed instructions. Some kits are sold as "full" (with shocks) or "add-a-leaf" options for the rear.
Coil Springs
Rubicon Express coils are made from high-tensile steel and are available in various spring rates. The standard range offers 2.5–6 inches of lift, depending on the model and series. Progressive rate coils are common in the Super-Flex line, giving a softer initial stroke for comfort and a firmer rate as the suspension compresses for off-road support.
Shocks
RE sells both twin-tube and monotube shocks. The twin-tube models are more affordable and adequate for light trail use. The monotube shocks (like the RE 9000 series) offer better heat dissipation and consistent damping on rough terrain. Many kits allow you to buy without shocks so you can choose your own aftermarket brands (e.g., Fox, Bilstein).
Control Arms
Rubicon Express control arms come in fixed length (for lower cost) and adjustable length. Adjustable arms are recommended for lifts over 3 inches to correct pinion angles and axle position. Their Super-Flex arms use a rubber bushing on one end and a joint on the other to reduce binding off-road. For extreme builds, they offer forged aluminum arms for weight savings.
Track Bars
Track bars (panhard bars) are crucial for centering the axle under the vehicle. RE includes adjustable track bars in their higher-end kits, while entry-level kits may use a bracket to relocate the factory bar. Adjustable track bars allow fine-tuning after installation.
Sway Bar Disconnects
Quick disconnects allow you to disconnect the sway bar for off-road articulation and reconnect for on-road driving. Rubicon Express offers manual disconnects that use a pin system, which are simple and reliable. They also offer sway bar link extenders for lifted Jeeps that keep the sway bar functional.
Steering Components
To maintain proper steering geometry after a lift, RE sells drag link flip kits, pitman arm spacers, and front adjustable track bars. These address bump steer and improve steering response.
Key Considerations When Choosing Rubicon Express Suspension Parts
Lift Height
Determine how much lift you need. For daily driving with occasional trails, 2.5–3 inches is common. For 35-inch tires, 3.5–4 inches works. For 37s or larger, plan for 4.5–6 inches. Higher lifts require more extensive modifications (driveshafts, brake lines, etc.).
Terrains and Usage
- Light off-road / overlanding: Standard Series or Super-Flex with monotube shocks.
- Rock crawling: Extreme-Duty with adjustable arms, heavy-duty coils, and upgraded track bars.
- Mud / sand: Soft coils may cause excessive body roll; stiffer coils are better.
Budget
Rubicon Express parts are moderately priced. A basic 2.5" lift kit can cost around $400–$800 without shocks. Full systems with adjustable arms and shocks run $1,500–$3,000. Compare with brands like Rough Country (lower cost) or Teraflex (similar pricing).
Compatibility
Check the kit’s compatibility with your model year and trim. For example, JL Wrangler parts are not interchangeable with JK. Also, consider if you have a Rubicon (which already has higher fenders and different suspension) – you may need different spring rates.
Installation Difficulty
Most RE kits are bolt-on and can be installed at home with basic tools. However, heavier kits with adjustable control arms require careful measuring and alignment afterward. If you are not experienced, budget for professional installation.
Maintenance and Longevity
Rubicon Express components are made from steel and coated for corrosion resistance. The bushings and joints can wear over time, especially in harsh environments. Check for loose bolts or worn bushings every season. Replaceable joints are available for some control arms.
How Rubicon Express Compares to Other Brands
- Rough Country: Lower price point, but RE typically offers better coil quality and more refined ride.
- Teraflex: Similar pricing and quality; RE tends to have heavier springs and more durable hardware.
- MetalCloak: Premium brand with higher cost and better articulation; RE is a good midrange option.
Rubicon Express is a solid choice for Jeep owners who want proven performance without spending top dollar. Their parts are designed to work together as a system, reducing guesswork.
Practical Recommendation
For most Jeep Wrangler owners, the Rubicon Express Super-Flex 3.5" lift kit with monotube shocks offers the best balance of cost, comfort, and off-road capability. If you plan to run 35-inch tires and do moderate trails, this kit is a great starting point. Add adjustable control arms if you want to fine-tune your alignment and accommodate heavier bumpers.
If you are on a tight budget, the Standard Series 2.5" lift provides a noticeable improvement in stance and tire clearance without breaking the bank. Just remember that shocks are sold separately in that series, so factor those in.
For heavy overlanding or rock crawling, step up to the Extreme-Duty series with heavy coils and adjustable everything. Pair with quality shocks from another brand (e.g., Fox 2.0) if you want better performance, though RE’s own shocks are decent.
Avoid mixing and matching RE parts with other brands unless you know precisely what you are doing. The suspension geometry is engineered as a system, so sticking with one brand helps ensure predictable handling.
Final Thoughts
Rubicon Express suspension parts have a strong reputation in the Jeep community. They offer practical solutions for lifts from 2 to 6 inches, with multiple tiers to fit different budgets and uses. Focus on your intended terrain, tire size, and budget. Prioritize quality springs and shocks, as those define ride quality. With proper installation and maintenance, Rubicon Express parts will serve you well through many trails.
Whether you are upgrading for a weekend adventure or a dedicated off-road rig, Rubicon Express provides a reliable foundation for your suspension build.