The Super-Flex Suspension System is designed for enthusiasts looking for the best short arm suspension system that retains the factory mounting locations. The Super-Flex system features great ride quality and phenomenal performance. Features include new Rubicon Express adjustable upper and fixed lower control arms with the serviceable Rubicon Super-Flex spherical ball joints, replacement lift springs, extended bump stops, longer front and rear stainless steel brake lines.The 3.5” suspension will allow the use of 35” tires and the 4.5” suspension will allow the use of 37” tires.
Driveline modifications may be required.
Standard Coil System
Raising the bar once again; Rubicon Express brings the Off-Road industry a great performing, low cost suspension system for the Wrangler JK. Rubicon Express brought the first long arm suspension for the JK Wrangler to the market back in 2006, setting an industry standard that all other suspension manufacturers strive to reach to this day.
Rubicon Express uses their expertise to create an affordable, budget-minded suspension package that is packed with impressive features and provides outstanding performance, creating a smooth ride on road and on the trail. The factory control arms and other components are retained. These systems will allow the use of 33” to 35” tires and have been engineered to easily upgrade to a Super-Flex or Extreme-Duty Long Arm systems with the purchase of additional components.
Economy Kit
The 2” economy kit is the perfect setup for those looking to slightly lift and level their Jeep at a rock bottom price. This kit levels your Jeep by lifting the front with a 2.5" coil spring spacer and the rear with a 1.75" coil spring spacer. Adding an average of 2” of lift will provide more clearance for larger tires and increase the flexibility of your JK’s suspension while maintaining the fantastic JK ride quality. The 2” Economy Kit is extremely simple to install: just fit the coil spring spacers in place and install Rubicon Express precision-valved shocks at each corner. Now your vehicle is ready to hit the trails! This suspension will allow the use of 33” tires.
Extreme-Duty Long Arm
The Rubicon Express Extreme-Duty Long Arm System was the first radius long arm suspension available for the Jeep Wrangler JK. This system has been engineered to work with your Jeep’s Electronic Stability Controls and Rubicon edition electronic sway bar without compromising safety.
Featuring Rubicon's world-class chromoly Radius Long Arms, the geometry has been meticulously designed to keep pinion and driveshaft angles in phase, while eliminating suspension jacking and unwanted suspension squat. Rubicon uses 2" x .250 wall Chromoly tubing for the lower control arms for serious off roading use. The Extreme-Duty Long Arm system coupled with properly valved Rubicon Express shocks allows the JK Wrangler to transmit throttle input to the wheels over varied terrain, providing sure-footed traction and positive suspension feedback. The result is superior on-road handling and unrivaled off-road performance, without the need to disable factory safety features. The 3.5” suspension will allow the use of 35” tires. The 4.5” suspension will allow the use of 37” tires. Driveline modifications will be required.
Extreme-Duty Long Arm Upgrade
Designed for those who already have a short arm suspension system on their vehicle. Extreme-Duty Long Arm Upgrade suspension system will provide noticeable improvements in your Jeep's on-road handling. The Rubicon Express Extreme-Duty Long Arm System was the first radius long arm suspension available for the Jeep JK. This system has been engineered to work with your Jeep's Electronic Stability Controls and Rubicon edition electronic sway bar without compromising safety.
Featuring the world-class chromoly Radius Long Arms, the geometry has been meticulously designed to keep pinion and driveshaft angles in phase, while eliminating suspension jacking and unwanted suspension squat. 2" x .250 wall Chromoly tubing is used for lower control arms for serious off roading use. Extreme-Duty Long Arm system coupled with properly valved Rubicon Express shocks allows the JK Wrangler to transmit throttle input to the wheels over varied terrain, providing sure-footed traction and positive suspension feedback. The result is superior on-road handling and unrivaled off-road performance, without the need to disable factory safety features.
4-Link Extreme Duty Long Arm
The 4-link Extreme-Duty Long Arm system is the most advanced suspension system available for Jeep JK. These high performance suspension systems deliver performance and control that are unmatched by any other long arm kit on the market. They feature adjustable chromoly upper and lower control arms that will stand up to anything you can drive over. With PT-MEG Super-Ride Bushings and Super-Flex Joints they are engineered to provide superior handling without limiting articulation.
The kits full width heavy-duty transmission crossmember allows for more durability and frame rigidity. This also allows for an easier installation because there is no welding required. Systems can be ordered in 3.5”, 4.5” and 5.5” lift heights with optional high performance monotube shocks. Like all Rubicon Express systems, these are made in the USA and backed by the Rubicon Express Advantage Lifetime Warranty
Super-Flex Short Arm
The TJ Super-Flex System is the ultimate suspension system for TJs running factory short arm suspension. The Super-Flex suspension system combines superior flexibility and handling. Installing one will give your TJ the on- and off-road performance you’ve been waiting for. The 4.5" TJ Super-Flex is a complete system featuring 8 new control arms, upper front and rear adjustable with the serviceable Super-Flex spherical ball joints, adjustable front track bar, replacement 4.5” lift springs, extended bump stops, longer front stainless steel brake lines, and Gen II sway bar disconnects. For TJ owners who want less lift than the 4.5” system at a more affordable price, look no further than the 3.5” Super-Flex system. Riding much like its slightly taller counterpart, this system improves upon the factory ride, while adding 3.5 inches of lift to augment flexibility and articulation. Plus, the 3.5” kit can always be upgraded to the 4.5” should you decide to change your mind in the future. The 4.5” system will allow the use of 33” tires, or up to 35” tires with proper bump stops. The 3.5” suspension will allow the use of 33” tires. Installing a SYE and CV driveshaft is recommended for the 3.5” and required for the 4.5”.
Standard Coil System
The Standard 3.5” suspension system provides 3.5” of lift at an economical price. It is ideal for an entry-level vehicle owner or those on a smaller budget. This system features new coil springs, bump stops and extended sway bar end links. The stock control arms, track bar and other components are retained. The system will perform smoothly on and off the trail, and is upgradeable to either a 3.5” or 4.5” Super-Flex system. The suspension will allow the use of 33” tires. An SYE and CV driveshaft may be necessary if driveline vibration occurs.
Economy Kit
The 2” economy suspension system is the perfect setup for those looking to gain an easy 2 inches of lift at a rock bottom price. Adding just 2” of lift will provide more clearance for larger tires and increase the flexibility of your TJs suspension. This economy-minded suspension system will maintain the renowned TJ ride quality. The 2” Economy Kit is extremely simple to install, just fit the 1.75” coil spring spacers in place and install the new Rubicon Express twin tube shocks at each corner. Now your vehicle is ready to hit the trails! This suspension will allow the use of 31” tires. Available with Rubicon Monotube shock option.
Extreme-Duty Long Arm
Rubicon Express was the first to commercially offer a long arm suspension system for the Jeep TJ. The Extreme-Duty Long Arm system set the industry standard by which all other kits have been measured. It is designed to be a complete suspension replacement, which utilizes longer control arms to improve lifted suspension geometry which makes the vehicle handle better on road and off road while reducing torque roll, and enhancing trail traction over standard short arm lift systems. The Rubicon Extreme-Duty Long Arm suspension system includes a stout 1/4" thick, three-piece belly pan for easy transfer case and transmission access. The company uses 2" x .250 wall Chromoly tubing for the lower control arms for serious off-roading use. The Rubicon TJ Extreme-Duty Long Arm suspension system is the best-performing and most technologically advanced system of its kind; there is not a better long arm suspension system available for your TJ. The first is still the best. Exhaust Modification Required. Installing a SYE and CV driveshaft is required when using a long-arm system.
Extreme-Duty Long Arm Upgrade
Designed for TJ owners who already have a Rubicon Express Super-Flex short arm suspension system, these kits allow you to upgrade to the Extreme-Duty Long Arm system. The Rubicon Extreme-Duty Long Arm System will provide noticeable improvements in your TJ’s on-road handling, returning a nearly stock ride quality. Off-road you will see unmatched performance on the most extreme trails. These upgrade systems include a stout 1/4" thick, three-piece belly pan for easy transfer case and transmission access; rear stainless steel brake lines and the chromoly Rubicon Express Extreme-Duty Long Arms. The company uses 2" x .250 wall Chromoly tubing for the lower control arms for serious off-roading. Lift height depends on the system you are upgrading. Exhaust Modification Required. Note: Upgrade systems re-use RE3780 adjustable upper control arms included with Rubicon Express Super-Flex Short Arm Systems. Bushings are provided to convert front upper arms to RE4020. Check your current application.
Super-Flex Short Arm
The LJ Super-Flex System is the ultimate suspension system for LJs running the factory short arm suspension. The Super-Flex system combines superior flexibility and handling. Installing one will give your LJ the on- and off-road performance you’ve been waiting for. The 4.5" LJ Super-Flex is a complete system, featuring 8 new control arms, upper front and rear adjustable with the serviceable Super-Flex spherical ball joints, adjustable front track bar, replacement 4.5” lift springs, extended bump stops, longer front stainless steel brake lines, and Gen II sway bar disconnects. For LJ owners who want less lift than the 4.5” system at a more affordable price, look no further than the 3.5” Super-Flex system. Riding much like its slightly taller counterpart, this system improves upon the factory ride, while adding 3.5 inches of lift to augment flexibility and articulation. Plus, the 3.5” kit can always be upgraded to the 4.5” should you decide to change your mind in the future. The 4.5” system will allow the use of 33” tires, or up to 35” tires with proper bump stops. The 3.5” suspension will allow the use of 33” tires. Installing a SYE and CV driveshaft is recommended for the 3.5” and required for the 4.5”.
Standard Coil System
The Standard 3.5” system provides 3.5” of lift at an economical price. It is ideal for an entry-level vehicle owner or those on a smaller budget. This system features new coil springs, bump stops and extended sway bar end links. The stock control arms, track bar and other components are retained. The system will perform smoothly on and off the trail, and is easily upgradeable to a 3.5” or 4.5” Super-Flex system. This suspension will allow the use of 33” tires. An SYE and CV driveshaft may be necessary if driveline vibration occurs.
Economy Kit
The 2” economy suspension system is the perfect setup for those looking to gain an easy 2 inches of lift at a rock bottom price. Adding just 2” of lift will provide more clearance for larger tires and increase the flexibility of your LJs suspension. This economy minded suspension system will maintain the renowned LJ ride quality. The 2” Economy Kit is extremely simple to install, just fit the 1.75” coil spring spacers in place and install the new Rubicon Express twin tube shocks at each corner. Now your vehicle is ready to hit the trails! This suspension will allow the use of 31” tires. Available with Rubicon Monotube shock option.
Extreme-Duty Long Arm
Rubicon Express was the first to commercially offer a long arm suspension system for the Jeep TJ; this same industry leading design is also available for the Wrangler Unlimited LJ. The LJ Extreme-Duty Long Arm system is designed to be a complete suspension replacement, which utilizes longer control arms to improve lifted suspension geometry which makes the vehicle handle better on road and off road while reducing torque roll and enhancing trail traction over standard short arm lift systems. The Rubicon Express Extreme-Duty Long Arm System includes a stout 1/4" thick, three-piece belly pan for easy transfer case and transmission access. Rubicon uses 2" x .250 wall Chromoly tubing for the lower control arms for serious off roading use. The Rubicon LJ Extreme-Duty Long Arm suspension system is the best-performing and most technologically advanced system of its kind, there is not a better Long arm suspension system for your LJ. Exhaust Modification Required. Installing a SYE and CV driveshaft is required.
Extreme-Duty Long Arm Upgrade
Designed for those who already have a Rubicon Express Super-Flex short arm suspension system, this kit will allow for an easy upgrade to the Extreme-Duty Long Arm System. This package includes a stout 1/4" thick, three-piece belly pan for easy transfer case and transmission access; rear stainless steel brake line and six Rubicon Express chromoly long arms needed to upgrade your existing short arm system to an Extreme-Duty Long Arm suspension system. Rubicon uses 2" x .250 wall Chromoly tubing for the lower control arms for serious off roading. Lift height depends on the system you are upgrading. Exhaust Modification Required. Note: Upgrade systems re-use RE3780 adjustable upper control arms included with Rubicon Express Super-Flex Short Arm Systems. Bushings are provided to convert front upper arms to RE4020. Check your current application.
Standard System
The Standard Systems are great for owners that desire more ride height and improved suspension articulation, but want a package at a more affordable price. The 4” Standard System comes complete with new springs, hardware, and shocks. The 2.5” Standard System is a great entry-level setup and includes the Rubicon twin-tube shocks. These Standard Systems provide lift that greatly improves upon the Jeep’s stock appearance and says to onlookers that your Jeep has off-road credibility.
Spring-Over Conversion
The Rubicon Express spring-over axle conversion suspension system is designed for the truly adventurous off-roader, and is a fabricator’s delight. This suspension system moves the leaf spring perches to the topside of the axle. The result is a net lift height increase of 5.5” with stock height springs. The use of stock spec springs will maintain the factory ride quality while the spring-over configuration will greatly increase the suspension flexibility, allowing room for larger tires, and vastly improve the visual appeal of your Jeep. The Spring-Over conversion requires welding new perches to the top of the axle. Steering modifications are required and a SYE/CV-driveshaft is mandatory. If you desire even more lift, the addition of a set of Rubicon Express Extreme-Duty Spring Over leaf springs (RE1444 and RE1445) result in a total lift height of 7 inches. The spring-over axle suspension configuration will allow the use of 33” tires when using stock leaf springs. The fitment of even larger tires is possible with additional modifications.
Extreme-Duty
The Rubicon Express Extreme-Duty suspension is your system of choice if you desire a substantial increase in ground and tire clearance for your vehicle, as well as greatly increased suspension flexibility. This system features RE Extreme-Duty leaf springs with military wrap at one end, which are unmatched for durability, flexibility and ride quality. Greaseable shackles, stainless steel brake lines, sway bar disconnects, ubolts, main eye bushings and much more are included on the Extreme-Duty systems. The most complete kit on the market!
Super-Flex Short Arm
The Rubicon Express Super-Flex system is the best suspension for ZJ Grand Cherokee’s running factory short arm suspension geometry. Upgrading your Grand Cherokee with a Super-Flex suspension system will turn your ZJ into a remarkable performing 4x4 machine with a smoother and more flexible ride on and off the trail. The Rubicon Express Super-Flex 4.5” lift replaces your stock ZJ suspension with the RE high-quality, trail-ready components. It features an adjustable front track bar, lower and upper adjustable rear control arms with the Super-Flex spherical ball joints (allowing necessary adjustments), replacement 4.5” lift springs, and Gen II sway bar disconnects. This is the best ZJ lift available that retains the factory short arm design and utilizes the factory suspension mounting points. This suspension allows the use of 32” tires. The Rubicon Express 3.5” Super-Flex suspension system is for ZJ Grand Cherokee enthusiasts who require a little less lift than the 4.5” system, at a more affordable price. The 3.5” features Rubicon Express Super-Flex lower control arms with the serviceable Super-Flex spherical ball joints, replacement 3.5” lift springs, and Gen II sway bar disconnects. The 3.5” Super- Flex system features the same ride quality and general trail traits as the 4.5” system. This 3.5” suspension package is easily upgraded to the 4.5” version should you decide your ZJ needs more lift in the future. This suspension will allow the use of 31” tires.
Super-Ride Short Arm
The Rubicon Express Super-Ride suspension system provides 3.5” of lift for your ZJ Grand Cherokee at an economical price. This suspension system is ideal for a vehicle owner with a smaller budget who is just getting started. The 3.5” Super- Ride is a standard short arm suspension system featuring Rubicon's exclusive Super-Ride lower control arms, 3.5-inch lift coil springs, rear track bar relocation bracket and extended sway bar end-links. The stock upper control arms, track bars and other components are retained. The Super-Ride suspension system will perform smoothly on and off of the trail, and is easily upgradeable to either a 3.5” or 4.5” Super-Flex system in the future. This suspension will allow the use of 31” tires.
Economy Kit
The Rubicon Express economy suspension system is the perfect setup for those looking to gain an easy 2 inches of lift at a rock bottom price. Adding just 2” of lift will provide more clearance for larger tires and increase the flexibility of your Grand Cherokee’s suspension. This economy-minded suspension system will maintain the renowned Grand Cherokee ride quality. The 2” Economy Kit is extremely simple to install, just fit the 1.75” spacers in place and install the new Rubicon Express twin tube shocks at each corner. Now your vehicle is ready to hit the trails! This suspension will allow the use of 30” tires.
Extreme-Duty Long Arm
The Rubicon Express Extreme-Duty Long Arm suspension system for the ZJ Grand Cherokee is designed to be a complete suspension replacement utilizing longer control arms to improve lifted suspension geometry which makes the vehicle handle better on road and off road while reducing torque roll, and enhancing trail traction over standard short arm lift systems. The Rubicon Express Extreme-Duty Long Arm suspension system for ZJs provides 4.5 inches of suspension lift and incorporates an incredibly stout 1/4" thick, innovative sub-frame cross members to attach the longer front Radius Long Arms and extended rear control arms to the vehicle instead of the stock sheet metal attaching points that are prone to breakage. Rubicon uses 2" x .250 wall Chromoly tubing for the lower control arms for serious off roading. Installing an Extreme-Duty Long Arm suspension system on your ZJ will maximize trail performance with increased travel and stability. This suspension will allow the use of 32” tires.
Extreme-Duty Long Arm Upgrade
Designed for those who already have a Rubicon Express Grand Cherokee ZJ Super-Flex or Super-Ride short arm suspension system. The RE Extreme-Duty Long Arm suspension system will provide noticeable improvements in your ZJ’s on road handling. Off-road, you will see unmatched performance on the most extreme trails. This package includes two new 1/4" thick, 3-piece cross members, two front Lower Extreme-Duty Long Arms, and four rear Extreme-Duty Long Arms. Rubicon uses 2" x .250 wall Chromoly tubing for the lower control arms for serious off roading. Lift Height will depend on the system you are upgrading. Note: Rubicon Express front upper adjustable control arms RE3780 are re-used for use with this system or RE4020 can be purchased separately.
Super-Flex Short Arm
The Rubicon Express Super-Flex suspension systems are a great choice for XJ Cherokee’s running factory short arm suspension. It offers you the perfect combination of price, street performance, and enhanced trail capabilities. Designed for heavy trail running, these systems are nearly indestructible. XJ Super-Flex systems are offered from 3.5"- 5.5" lift heights and with either full leaf pack replacements or add-a-leafs for the rear. This is the best XJ lift available retaining the factory short arm design. These systems may be upgradeable in the future to Long Arm Upgrade kits. Note: Installing a SYE and CV driveshaft is recommended when lifting any vehicle 3.5” or higher.
Super-Ride Short Arm
The 3.5” Super-Ride suspension system is ideal for the discerning XJ Cherokee owner who desires a more aggressive look, higher ride stance and better trail performance, but wants to retain factory like on-road handling and ride quality. Replacement Rubicon Express Super-Ride lower control arms eliminate weak factory control arms, without inducing additional road noise or vibration. More economical than the Super-Flex 3.5”, this system is capable of fitting 31” tires.Installing an SYE and CV driveshaft is recommended when lifting 3.5” or higher.
Economy Kit
The Rubicon Express 2” Standard suspension system for the XJ Cherokee offers a great performance at an immense value. The 2” standard system for the XJ is the quickest and easiest way to boost your Cherokee’s height noticeably while barely making a dent in your pocketbook. This system will clear 30” tires.
Extreme-Duty Long Arm
The Rubicon Express Extreme-Duty Long Arm suspension system is the ultimate 5.5” suspension system for the XJ Cherokee. Designed to be a complete suspension replacement that utilizes longer control arms to improve lifted suspension geometry which makes the vehicle handle better on road and off road while reducing torque roll, and enhancing trail traction over standard short arm lift systems. The Rubicon Express Extreme-Duty long arm suspension system for the XJ features the stout 1/4" thick innovative Rubicon Express three-piece cross member for easy transfer case and transmission access, front Extreme-Duty Radius Long Arm’s with the serviceable Super-Flex spherical ball joints, heavy-duty track bar, heavy-duty track bar bracket brace, and Gen II disconnects. Rubicon uses 2" x.250 wall Chromoly tubing for the lower control arms for serious off roading. This suspension will allow the use of 33” tires. Installing a SYE and CV driveshaft is required when using a long arm system.
Extreme-Duty Long Arm Upgrade
Designed for those who already have an XJ Cherokee Super-Flex or Super-Ride short arm suspension system. The RE Extreme-Duty Long Arm suspension system will provide noticeable improvements in your XJ’s on-road handling. Off road, you will see unmatched performance on the most extreme trails. The package includes a stout 1/4" thick three-piece cross member and all 4 front Extreme-Duty control arms. Rubicon uses 2" x .250 wall Chromoly tubing for the lower control arms for serious off roading. Lift height depends on the system you are upgrading.