-11%
Click to zoom in
Rear Long Travel Coils for the Rubicon 392
The Skyjacker JLUR403RDR is a component box built for the 2021 to 2023 Jeep Wrangler Unlimited Rubicon 392 that supplies rear dual rate long travel coil springs along with the hardware needed to complete the rear portion of a Skyjacker lift installation. The dual rate design uses a soft upper rate for daily ride comfort and a firmer lower rate for control during hard off road use.
Key Features
- Rear dual rate long travel coil springs
- Purpose built for the Rubicon 392 lift platform
- Progressive spring rate for comfort and control
- Includes mounting hardware for a complete rear install
- Backed by a limited lifetime warranty
Fitment
| Year Range | Make | Model | Trim |
|---|---|---|---|
| 2021-2023 | Jeep | Wrangler | Rubicon 392 |
Specifications
| Detail | Value |
|---|---|
| MPN | JLUR403RDR |
| UPC | Not Published |
| Position | Rear |
| Spring Type | Dual Rate Long Travel |
| Warranty | Limited Lifetime Warranty |
What's Included
- Rear dual rate long travel coil springs
- Mounting hardware
- Installation instructions
About Skyjacker
Skyjacker Suspensions has designed and manufactured off road suspension systems in Mississippi since 1970. The company builds lift kits, leveling kits, shocks, and leaf springs engineered to hold up to demanding off road use while preserving on road ride quality.
Related Parts
- Skyjacker JLUR453FDR front dual rate long travel coil component box
- Skyjacker JL45R3ELT 4.5 inch lift hardware component box
FAQ
What is the JLUR403RDR?The JLUR403RDR is a Skyjacker component box for the 2021 to 2023 Jeep Wrangler Unlimited Rubicon 392 that includes rear dual rate long travel coil springs and the hardware needed to install them.
What does dual rate long travel mean?Dual rate springs use two coil rates in one spring, a softer rate for everyday ride comfort and a firmer rate that engages under greater suspension compression for control off road.
What vehicles fit the JLUR403RDR?The JLUR403RDR is designed specifically for the 2021 to 2023 Jeep Wrangler Unlimited Rubicon 392.
Does the JLUR403RDR include shocks?No, this component box includes rear coil springs and hardware only; shocks are sold separately.
Is the JLUR403RDR sold with the front coils?No, the front coils are sold separately as the JLUR453FDR component box.
What warranty covers the JLUR403RDR?Skyjacker backs the JLUR403RDR with a limited lifetime warranty against defects in materials and workmanship.
Can the JLUR403RDR be installed at home?Installation requires a spring compressor and jack stands, and is typically performed alongside the full Skyjacker lift kit installation.
Will the JLUR403RDR affect ride quality?The dual rate design is engineered to preserve comfortable on road manners while improving off road articulation.
Install Instructions
- Raise and safely support the rear of the vehicle on jack stands.
- Support the rear axle and disconnect the rear shocks and sway bar links.
- Lower the rear axle carefully and remove the factory rear coil springs.
- Install the JLUR403RDR rear dual rate long travel coil springs.
- Raise the axle back into position and reinstall the shocks.
- Reconnect the sway bar end links using extended links if required by the lift height.
- Torque all hardware to manufacturer specification.
- Perform a wheel alignment before returning the vehicle to regular use.
Prop 65 Warning
WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Lift Kits
Shop lift kits, suspension lift kits, coilover lift kits, Pro-Truck lift kits, Stage 1, Stage 2, and Stage 2R lift systems, leveling kits, front strut spacer kits, rear lift blocks, coil spring lift kits, component boxes, upper control arms, lift springs, and reservoir shocks from Eibach, Skyjacker, Zone Offroad, Tuff Country, Belltech, MaxTrac, Fabtech, Rancho, and other truck and off-road suspension manufacturers. Find complete suspension lift packages, front-only strut leveling kits, rear-only block and shackle kits, Jeep and Gladiator component boxes with ADX M2.0 aluminum monotube shocks, Rancho QuickLift loaded struts, and lift hardware sized for daily-driven trucks, weekend adventure builds, and dedicated overland platforms. A properly matched lift kit raises ride height, opens up tire and wheel clearance, corrects factory rake on trucks and SUVs, and adds the ground clearance needed for larger tires and off-road use. This collection covers everything from 1.5-inch front s...
View Lift Kits Products
Skyjacker
Skyjacker suspension parts are stocked at Black Ops Auto Works for Jeep, Ford, Chevrolet, GMC, RAM, and Toyota trucks and 4x4 vehicles. Shop lift kits, leveling kits, dual rate coil springs, Black Max, Nitro 8000, Hydro 7000, and ADX M2.0 shocks, steering stabilizers, upper control arms, and suspension hardware. Every product is filterable by year, make, model, trim, and drivetrain so the correct Skyjacker part ships the first time. Black Ops Auto Works carries 1,596 Skyjacker SKUs across lift, leveling, and off-road suspension categories. What This Collection Covers Skyjacker builds off-road suspension systems for trucks and Jeeps that need more ground clearance, better ride control, improved steering stability, and stronger trail capability. Skyjacker is best known for lift kits, leveling kits, and long travel coil springs. Product Categories Lift kits and component boxes, leveling kits and strut spacers, dual rate and long travel coil springs, Black Max, Nitro 8000, Hydro 700...
View Skyjacker Products
Suspension
Suspension parts and complete kits for cars, trucks, SUVs, Jeeps, and off-road builds are stocked at Black Ops Auto Works. Shop coilovers, lowering springs, lift kits, leveling kits, shocks and struts, sway bars, control arms, tie rods, ball joints, bushings, chassis bracing, alignment hardware, air suspension, and complete stage kits from Bilstein, KW, Ohlins, Fox, KING, ICON, BC Racing, Silvers, Eibach, H&R, Swift Springs, Whiteline, Energy Suspension, Moog, SPC Performance, Rough Country, ReadyLIFT, BDS, Skyjacker, Air Lift, Firestone, and Black Ops Auto Works. Start with a matched shock and spring package or a full coilover kit, then layer in sway bars, chassis bracing, and camber adjustment hardware. Every part is filterable by year, make, model, trim, and drivetrain to confirm fitment before ordering. What This Category Covers Suspension is the highest-leverage handling upgrade on any vehicle. A properly matched shock, spring, and sway bar package produces measurable i...
View Suspension Products