Overview
The Rubicon Express RE5520 is a 4.5-inch Extreme-Duty leaf spring lift kit for the 1987–1995 Jeep Wrangler YJ. It is aimed at owners who want a large gain in ground and tire clearance and more suspension flexibility. The kit is rated for a 3 to 4.99-inch lift range and includes no shocks.
The Extreme-Duty leaf springs are built to be durable and flexible, with good ride quality. The kit includes greaseable shackles and main eye bushings, stainless steel brake lines, sway bar disconnects and a drop Pitman arm. The system keeps the classic YJ ride while allowing 33-inch tires, and adding a 1-inch body lift allows 35-inch tires.
Greaseable shackles and main eye bushings let the spring pack be serviced with grease. The kit also includes stainless steel brake lines, a drop Pitman arm and sway bar disconnects.
Key features
- Extreme-Duty leaf springs
- Greaseable shackles and main eye bushings
- Stainless steel brake lines
- Sway bar disconnects and drop Pitman arm
- Rated for 33-inch tires, or 35-inch tires with a 1-inch body lift
Greasing and servicing the springs
Greaseable shackles and main eye bushings allow the spring pack to be serviced rather than replaced when they wear. Grease the fittings at regular intervals, especially after trail use, water crossings or mud. Wipe each fitting clean before pressing the grease gun so dirt does not get pushed into the bushing.
Inspect the spring pack for cracked or broken leaves, loose center bolts and worn eye bushings. Look for play at the shackle, which can make steering feel loose. Stainless steel brake lines should be checked for rubbing against the new spring position and for kinks after the lift.
Keep track of the tire size you run. Heavier tires and taller sidewalls increase the load on every spring and bushing, so service intervals should be shorter with bigger tires.
Specifications
| Brand | Rubicon Express |
|---|---|
| Part number | RE5520 |
| Suspension type | Extreme-Duty leaf spring |
| Lift height | 4.5 inches (rated 3 to 4.99 inches) |
| Rear lift method | Leaf springs |
| Shocks | Not included |
| UPC | 614901441444 |
| Fitment type | Direct fit |
Vehicle fitment
Fits the 1987–1995 Jeep Wrangler (YJ) as a direct fit in Base, Islander, Laredo, Renegade, Rio Grande, S, SE, Sahara and Sport trims.
Wrangler TJ, LJ and JK models are not on this list. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
Installing a SYE and CV driveshaft is needed with this kit.


