Overview
The Rubicon Express JT7145T is a 4.5/5.5 inch sport suspension lift kit with geometry correction brackets and twin tube shocks for the 2020–2022 Jeep Gladiator JT. It is a direct fit for the 80th Anniversary, Altitude, High Altitude, Launch Edition, Mojave, Overland, Rubicon, Sport, Sport S, Willys and Willys Sport trims.
Lifts in this size range are designed to work both on pavement and off it. A lift of this size can change suspension and steering geometry, and the brackets are included to address that change.
The rear lift uses coil springs, the lift height range is 4 to 5.5 inches, and the specifications list a 37-inch tire size with twin tube shocks at both ends.
Key features
- 4.5/5.5 inch sport suspension lift
- Geometry correction brackets, per the title
- Twin tube shocks at the front and rear, included
- Coil spring rear lift method
- Clearance for 37-inch tires, per the specifications
Twin tube shock care
Twin tube shocks have a working cylinder and a reserve chamber, which makes them a straightforward design to service. On a lifted Gladiator they are often the first part to show wear, since the longer travel puts more load on the shaft and the eyelets. Check for oil residue on the outer tube, a clunk at the mounts, and uneven damping between the left and right sides.
Shock hardware should be checked after the first few drives and again at each tire rotation. Make sure the eyelet bolts are tight and the rubber bushings are not cracked or flattened. Coil springs and shocks work together, so a sagging spring can make a healthy shock feel overworked. When replacing dampers, match the front and rear pair so the truck handles evenly.
Specifications
| Brand | Rubicon Express |
|---|---|
| Part number | R/EJT7145T (JT7145T) |
| Kit type | Sport suspension lift kit |
| Lift | 4.5/5.5 inch |
| Lift height range | 4 to 5.5 inches |
| Tire size | 37 inches |
| Front shocks | Twin tube |
| Rear shocks | Twin tube |
| Rear lift method | Coil springs |
| Shocks included | Yes |
| Fitment type | Direct fit |
Vehicle fitment
It is a direct fit for the 2020–2022 Jeep Gladiator in the 80th Anniversary, Altitude, High Altitude, Launch Edition, Mojave, Overland, Rubicon, Sport, Sport S, Willys and Willys Sport trims.
Only the 2020–2022 Gladiator JT is covered here, not the Wrangler. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
With a 4.5/5.5 inch lift, the brackets and the twin tube shocks should be fitted to the lengths the kit supplies, and the alignment and driveline angles checked afterward.
What’s included
The specifications list twin tube shocks at the front and rear, coil spring rear lift components and geometry correction brackets as part of this kit.



























