Overview
The Rubicon Express RE7147PT is a 3.5 inch Super-Flex suspension lift kit for the Jeep Wrangler JK. It is a progressive coil lift kit aimed at JK owners who want a lower price point.
The lower control arms are replaced with Super-Flex front control arms, and the stock upper control arms stay in place. The kit is designed to improve trail flexibility while keeping a comfortable street ride.
The kit uses progressive coil springs and twin tube shocks in place of the FOX shock package. Its listed lift height range is 3 to 4.99 inches.
Key features
- Super-Flex front control arms replace the lower control arms
- Stock upper control arms retained
- Progressive coil springs
- Twin tube shocks included
- Adjustable lower control arms and adjustable front track bar
- Extended bump stops and sway bar disconnects
Choosing a coil lift
A coil spring lift raises the body by replacing the springs and changing the arm geometry, so the ride and handling change along with the height. On a Jeep JK, the front arms and track bar decide how the axle sits under the frame, which is why alignment and driveline angles should be checked after the install. Expect a firmer or softer feel depending on the shocks and springs you run, and expect steering to respond differently at highway speed.
Tires are the next thing to plan. A taller suspension makes room for larger tires, but wheel offset and fender clearance still need checking, and the bump stops and sway bar disconnects help control how the axle travels off road. When the arms or joints show play, wear appears as clunks over bumps or uneven tire wear, so a periodic look at the bushings and joints is worthwhile.
- Re-torque hardware after the first few trail runs
- Check tire rub at full steering lock
- Inspect joints and bushings at each oil change
Specifications
| Brand | Rubicon Express |
|---|---|
| Part number | RE7147PT |
| Lift height | 3.5 inch, listed range 3 to 4.99 inches |
| Front suspension | Super-Flex short arm |
| Rear suspension | Progressive coil springs |
| Shocks | Rubicon Express Twin Tube, included |
| Track bar | Adjustable front |
| Other parts | Extended bump stops, sway bar disconnects |
Vehicle fitment
It fits the 2007–2018 Jeep Wrangler (JK). Verify the year, model and trim for your vehicle before buying.
Fit beyond the 2007–2018 Jeep Wrangler (JK) should be confirmed for your vehicle’s year, model and trim before ordering.
Installation notes
A lift kit changes suspension geometry, so have the alignment checked after installation and review the driveline angles. Set the sway bar disconnects for the way the vehicle is driven.
What’s included
Super-Flex front control arms, progressive coil springs, twin tube shocks, an adjustable front track bar, extended bump stops and sway bar disconnects.
