Overview
The Rubicon Express RE7121 is a 2.5-inch standard coil lift kit for the Jeep JK Wrangler, sold without shocks. It was first offered for the 07-12 Jeep JK Wrangler and fits the 2007-2018 Jeep Wrangler (JK). The kit replaces the front and rear coil springs. Confirm fit for your vehicle’s year, model and trim before ordering.
The kit replaces the front and rear coil springs and adds front alignment washers for caster adjustment, a rear track bar bracket, bump stops and extended sway bar end links. Installation does not require changing driveshafts, modifying the exhaust or altering the brake lines. The lift adds ground clearance and extended wheel travel. It covers a 2.5-inch lift range.
Key features
- 2.5-inch lift height, within the 2.5-inch range on the chart
- Front and rear replacement coil springs
- Front alignment washers for caster adjustment
- Rear track bar bracket
- Bump stops and extended sway bar end links
- Designed to be easily upgraded
- The lift makes room for 35-inch tall tires.
Shocks and tire clearance
Because this kit ships without shocks, the shocks already on the vehicle will shape how the new height rides. New coil springs can change the ride, and older shocks may feel soft or be worn beyond their useful life. Shocks sized for a 2.5-inch lift are a sensible match, and many owners replace them when the springs go in so both parts age together.
Bigger tires add load to steering and axle parts. Check the tie rods, ball joints and wheel bearings before running 35-inch tires, and recheck clearance at full steering lock and suspension travel. Rubbing often shows up first at the front inner fender, so look there after the first drive.
- Inspect shocks for leaks and worn mounts before installing springs
- Check steering stops when fitting larger tires
- Retorque lug nuts after the first drive
Specifications
| Brand | Rubicon Express |
|---|---|
| Part number | RE7121 |
| UPC | 614901441666 |
| Kit type | Standard coil lift |
| Lift height | 2.5 inches |
| Rear lift method | Coil springs |
| Shocks | Not included |
Vehicle fitment
It fits the 2007-2018 Jeep Wrangler (JK) in the 70th Anniversary, 75th Anniversary, Rubicon, Sahara, Sport, Sport S and X versions.
Confirm your vehicle’s year, model and trim before ordering.
Installation notes
Replacing the coil springs and fitting the caster washers changes ride height and front alignment, so the alignment should be checked after the install. The shocks are not included, so existing shocks will be used or replaced separately.
What’s included
The kit includes front and rear replacement coil springs, front alignment washers for caster adjustment, a rear track bar bracket, bump stops and extended sway bar end links.
Not included: shock absorbers.






