Overview
The RE7127FPR is a 3.5 inch Super-Flex lift kit for the Jeep Wrangler JK 2-door. It comes with Fox Performance Resi shocks, the reservoir version of the FOX Performance Series.
The kit upgrades the lower control arms to adjustable Super-Flex arms and adds a front track bar that can be adjusted. Coil springs, extended bump stops and sway bar disconnects complete the package, and the listed lift height range is 2.5 to 3.5 inches.
The FOX Performance shocks are covered by the FOX warranty and do not fall under the Rubicon Express Advantage Warranty, so warranty questions for the shocks are handled by FOX.
Key features
- Super-Flex front suspension with adjustable lower control arms
- Adjustable front track bar
- Fox Performance Resi shocks
- Coil springs
- Extended bump stops
- Sway bar disconnects
Living with Super-Flex arms
Super-Flex arms are built to let the axle articulate on uneven ground, which is why this type of front suspension is common on trail-focused Jeep builds. Because the arms are adjustable, a shop can set the axle location and front geometry, but the adjustment should be checked after every change. The adjustable front track bar keeps the axle centered under the body as the arms travel, so it should be checked whenever the arms are changed.
Super-Flex arms tend to wear at the joints over time, especially on vehicles that see rocks and deep mud. Grease fittings and boot seals should be inspected regularly, and any play in the joints should be dealt with before it becomes noisy or affects steering. Resi shocks can be checked for fluid leaks at the reservoir hose during the same service.
Specifications
| Brand | Rubicon Express |
|---|---|
| Part number | RE7127FPR |
| Body style | 2-door models |
| Lift height range | 2.5 to 3.5 inches, sold as a 3.5 inch kit |
| Front suspension | Super-Flex short arm with adjustable lower control arms |
| Shocks | Fox Performance Resi, front and rear |
| Rear lift | Coil spring kit |
| Track bar | Adjustable front track bar |
| Other parts | Extended bump stops, sway bar disconnects |
| Warranty | FOX warranty on the shocks |
Vehicle fitment
This kit is in the JK range, which runs from 2007 through 2018 for the Wrangler (JK). It fits 2-door models.
Other generations are not covered, including the JL Wrangler and the Gladiator, and the older TJ and LJ. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
For 2012 and later trucks, an exhaust modification or a front drive shaft may be required. Have the alignment checked after installation, because the Super-Flex arms change the front geometry.
What’s included
Super-Flex front arms, adjustable lower control arms, an adjustable front track bar, coil springs, Fox Performance Resi shocks, extended bump stops and sway bar disconnects.
