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Dual-Rate Coil Springs and Tuned Shocks for Versatility
This system includes front and rear dual-rate coil springs engineered to maintain ride quality while offering increased suspension travel. Whether you're driving standard or opting for heavy-duty (HD) coils, the ride remains compliant. Paired with JSPEC custom-valved gas shocks or optional FOX 2.0 IFP Performance Shocks, the setup ensures responsive damping and control over varying terrain.
Precision Axle Positioning and Suspension Geometry Correction
To maintain proper suspension alignment at the lifted height, JKS includes a front adjustable track bar that helps re-center the axle. Rear track bar brackets are also included to maintain rear geometry. Caster correction is handled via included cam lock plates, providing consistent steering feedback and tracking on road and off.
Maximized Articulation with Quicker Disconnects
The front sway bar Quicker Disconnects provide a tool-free way to unleash full articulation potential off-road while easily reconnecting for stable on-road driving. These are combined with rear extended sway bar links to maintain consistent sway control throughout the travel range.
Additional Trail-Ready Components
Front and rear bump stop extensions are included to prevent over-compression during full flex. Brake line clearance and driveline angle considerations are built into the design for straightforward installation with minimal modifications.
Fitment Guide
| Years | Make | Model | Drive | Engine |
|---|---|---|---|---|
| 2018–2021 | Jeep | Wrangler 4-Door (JL) | 2WD | Gas |
| 2018–2021 | Jeep | Wrangler 4-Door (JL) | 4WD | Gas |
Key Features
- 2.5" front and rear lift using dual-rate coil springs (standard or HD)
- JSPEC custom-valved gas shocks or upgrade to FOX 2.0 Performance IFP Shocks
- JKS adjustable front track bar for precise axle centering
- Front caster correction cam lock plates included
- Front sway bar Quicker Disconnects and rear extended links for full articulation
- Front and rear bump stop extensions protect from over-compression
- Rear track bar relocation bracket for improved suspension geometry
Included Components
- JSPEC1202 (Qty: 1)
- JSPEC1251 (Qty: 1)
- JSPEC1259 (Qty: 1)
- JSPEC9322 (Qty: 2)
- JSPEC9329 (Qty: 2)
Quick Specs
| Spec | Detail |
|---|---|
| Lift Height (Front/Rear) | 2.5" |
| Lift Method | Coil Spring |
| Shock Options | JSPEC Gas Shocks or FOX 2.0 IFP |
| Install Difficulty | Moderately Easy (2 of 5) |
| Estimated Install Time | 5–6 Hours |
| Part Number | JSPEC117K |
Important Installation Notes
- HD front coils recommended for use with aftermarket winch/bumper setups
- HD rear coils recommended if running a full-size spare tire on the tailgate
- Not compatible with 4xe or Rubicon 392 models
- California Residents: PROP 65 WARNING – Cancer and Reproductive Harm
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