Overview
The Rubicon Express RE7143FPR is a Super-Flex short arm lift kit for the Jeep Wrangler JK. It comes with front and rear Fox Performance Resi shocks and is built for on and off-road performance.
Adjustable upper control arms work with fixed lower control arms in this system. The arms use serviceable Super-Flex spherical ball joints, and the kit includes new Super-Ride bushings in place of the factory bushings.
The FOX Performance shocks carry the FOX warranty rather than the Rubicon Express Advantage Warranty.
Key features
- Short arm system
- Adjustable upper control arms
- Fixed lower control arms
- Serviceable Super-Flex spherical ball joints
- New Super-Ride bushings
- Front and rear Fox Performance Resi shocks
Short arm setup and alignment
Short arm systems replace the longer factory arms with shorter ones that keep the axle located while letting the suspension travel. Adjustable upper arms are used to set the axle position and pinion angle, while fixed lower arms hold the geometry steady. Because the upper arms carry much of the alignment setting, expect the initial setup to take time and plan a full alignment rather than a basic front-end check.
Serviceable ball joints and new bushings make maintenance easier over time, and they should be inspected whenever you check the rest of the front end. Look for play in the joints, cracked boots and bushings that have hardened or split. Replacing worn parts together keeps the new geometry predictable. For newer trucks, confirm the exhaust and front drive shaft requirements before ordering so the install does not stop halfway.
- Alignment after installation
- Check ball joint boots for tears
- Inspect bushings for cracking
- Confirm exhaust and drive shaft requirements for 2012 and newer
Specifications
| Brand | Rubicon Express |
|---|---|
| Part number | RE7143FPR |
| Suspension type | Super-Flex short arm |
| Lift height range | 2.5 to 3.5 inches |
| Upper control arms | Adjustable |
| Lower control arms | Fixed |
| Ball joints | Serviceable Super-Flex spherical |
| Bushings | New Super-Ride |
| Shocks | Fox Performance Resi, front and rear |
| Rear lift | Short arm with coil springs |
| Warranty | FOX warranty on the shocks |
Vehicle fitment
It is for the 2007–2018 Jeep Wrangler (JK).
No JL, Gladiator, TJ or LJ fitment applies to this kit. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
Newer trucks from 2012 onward may need an exhaust modification or a front drive shaft, so check this before ordering. After installation, have the front alignment set to the new arm geometry.
What’s included
A short arm suspension system with adjustable upper control arms, fixed lower control arms, Super-Flex spherical ball joints, new Super-Ride bushings and front and rear Fox Performance Resi shocks.
