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High-Clearance Triple Rate Front Coil Springs for Serious Jeep Wrangler JL Off-Road Builds
The Rock Krawler RKRRK07016P delivers 3.5 inches of front lift for the 2018 to 2026 Jeep Wrangler JL two-door and JLU four-door, providing the front lift height required for 37 inch tire fitment in a complete JL suspension system. The RKRRK07016P uses Rock Krawler's triple rate spring technology to provide a progressive ride quality across the full compression range, from smooth highway driving to maximum droop off-road. These springs are sold as a pair with a 5-year warranty and require no drilling or modification for installation.
Key Features
- 3.5 inch front lift for 2018-2026 Jeep Wrangler JL 2-Door and JLU 4-Door
- Triple rate progressive spring for combined street comfort and trail articulation
- Designed to support 37 inch tire fitment in full JL suspension systems
- Black powder coat finish for corrosion resistance
- 5-year warranty
- No drilling required, sold as a pair
Vehicle Fitment
| Year Range | Make | Model | Trim |
|---|---|---|---|
| 2018-2026 | Jeep | Wrangler | JL 2-Door |
| 2018-2026 | Jeep | Wrangler | JLU 4-Door |
Specifications
| Detail | Value |
|---|---|
| Part Number | RKRRK07016P |
| Brand | Rock Krawler |
| Lift Height | 3.5 inches |
| Location | Front |
| Spring Type | Triple Rate |
| Finish | Black Powder Coat |
| Quantity | Pair |
| Warranty | 5 Year |
| Fitment | 2018-2026 Jeep Wrangler JL 2-Door and JLU 4-Door |
| Condition | New |
| UPC | N/A |
What's Included
- Rock Krawler RKRRK07016P triple rate front coil springs (pair)
About Rock Krawler
Rock Krawler is a Vermont-based Jeep suspension specialist producing complete lift systems and individual spring components for JK, JL, and JT Wrangler platforms. The RKRRK07016P is part of Rock Krawler's 3.5 inch JL lift configuration and is engineered to JL-specific coil spring bucket dimensions and geometry.
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Frequently Asked Questions
What is the RKRRK07016P?The Rock Krawler RKRRK07016P is a pair of triple rate front coil springs providing 3.5 inches of lift for the 2018 to 2026 Jeep Wrangler JL two-door and JLU four-door. They are engineered for JL platform geometry and are part of Rock Krawler's 3.5 inch complete lift system.
Will the RKRRK07016P fit 37 inch tires on a stock JL body?A 3.5 inch front lift is commonly used to support 37 inch tires on the JL, but full lock-to-lock clearance may still require fender flare trimming or fender relocation depending on tire width and wheel offset. Verify clearances specific to your wheel and tire combination before installation.
What rear spring pairs with the RKRRK07016P for a complete JL 3.5in lift system?Rock Krawler designs matched rear springs for use with the RKRRK07016P front coil to ensure proper vehicle rake and geometry at 3.5 inches of lift on the JL and JLU. Contact Black Ops Auto Works for current rear spring pairing recommendations for your build.
Does the RKRRK07016P require geometry correction arms on the JL at 3.5in?At 3.5 inches of lift, control arm correction is commonly recommended on the JL to restore proper caster, pinion angle, and reduce driveline vibration. Rock Krawler offers JL-specific adjustable control arms designed for use with this lift height.
Is the RKRRK07016P suitable for the Jeep Wrangler JL Rubicon with factory solid front axle?Yes. The RKRRK07016P is designed for all JL and JLU models including the Rubicon, Sport, and Sahara, which share the same front coil spring mount dimensions. Note that Rubicon models have a higher factory ride height, so final lift results may vary slightly.
Can I use the RKRRK07016P with the factory JL shocks?Factory JL shocks are not long enough to utilize the full articulation range available with a 3.5 inch lift spring. Rock Krawler recommends extended travel shocks matched to the 3.5 inch lift height for proper suspension function and performance.
Does the RKRRK07016P work on the 2021 and newer Jeep Wrangler 4xe JLU?The 4xe JLU uses the same front coil spring mounts as standard JL models but weighs more due to the hybrid battery system, which can affect final ride height. Consult Rock Krawler for 4xe-specific guidance before ordering the RKRRK07016P.
How long is the Rock Krawler warranty on the RKRRK07016P?The RKRRK07016P is backed by Rock Krawler's 5-year warranty against defects in materials and workmanship. Contact Black Ops Auto Works or Rock Krawler directly for warranty claim procedures.
Installation Instructions
- Safely support the front of the Jeep Wrangler JL on jack stands with the front axle hanging freely.
- Remove the front wheels and disconnect sway bar end links.
- Remove the front shocks and use a spring compressor to safely remove the factory front coil springs.
- Install the Rock Krawler RKRRK07016P springs, ensuring correct seating in both the upper and lower perches.
- Reinstall shocks and sway bar end links.
- Lower the vehicle, confirm ride height, and perform a professional four-wheel alignment before returning to road use.
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