Overview
The Rubicon Express RE6300T is a 5.5-inch Extreme-Duty long arm lift kit with twin tube shocks for the 1984–2001 Jeep Cherokee XJ. It is a direct fit for the Base, Briarwood, Chief, Classic, Country, Laredo, Limited, Pioneer, SE and Sport trims.
This is a full suspension replacement built on longer control arms, which improves lifted suspension geometry. The longer arm layout improves stability on and off road, reduces torque roll and axle steer, and adds traction compared with short arm kits.
The kit includes a three-piece crossmember, front Extreme-Duty radius long arms with Super-Flex spherical ball joints, a heavy-duty track bar, a track bar bracket brace and Gen II disconnects. The specifications list a 33-inch tire size, a lift height range of 4 to 5.5 inches and shocks as included.
Key features
- Twin tube shocks, per the title
- Three-piece crossmember for transfer case and transmission access
- Front Extreme-Duty radius long arms
- Serviceable Super-Flex spherical ball joints
- Heavy-duty track bar, bracket brace and Gen II disconnects
Twin tube shock upkeep
Twin tube shocks rely on fluid moving between two tubes, which keeps them simple and easy to service. On a long arm lift they handle the change in ride height as the suspension moves. Regular inspection helps them keep their damping, especially after trail use where the shafts pick up grit.
Pair the shocks with a check of the leaf springs, the bushings and the shock mounts, since those parts carry the same loads. A heavy-duty track bar also affects how the axle moves side to side, so inspect the track bar ends during service. Fresh bushings and clean shaft seals help the ride stay predictable.
- Wipe shock shafts clean after off-road runs
- Check shock mounts after the first drives
- Inspect track bar ends at each service
Specifications
| Brand | Rubicon Express |
|---|---|
| Part number | R/ERE6300T (RE6300T) |
| Kit type | Extreme-Duty long arm suspension lift kit |
| Lift | 5.5 inch |
| Lift height range | 4 to 5.5 inches |
| Tire size | 33 inches |
| Shock type | Twin tube, per the title |
| Rear lift method | Leaf springs |
| Shocks included | Yes |
| Fitment type | Direct fit |
Vehicle fitment
This kit fits the 1984–2001 Jeep Cherokee (XJ) in the Base, Briarwood, Chief, Classic, Country, Laredo, Limited, Pioneer, SE and Sport trims.
Other Cherokee years and models are not on this list. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
The long arm layout, crossmember and track bar change the suspension geometry, so the driveline, the pinion angle and the alignment should be checked after the install.
What’s included
The kit includes the three-piece crossmember, Extreme-Duty radius long arms, Super-Flex spherical ball joints, heavy-duty track bar, bracket brace, Gen II disconnects and twin tube shocks.




