JKS JSPEC117KFA 2.5in J-Venture Lift Kit FOX 2018-2025 Jeep Wrangler JL 4-Door

Vehicle Fitment

• 2018-2025 Jeep Wrangler JL Unlimited 4-Door (Sport, Sport S, Sahara, Rubicon, Willys, High Altitude, Freedom), 4WD

Fitment Notes

• Does not fit 2021-2025 Jeep Wrangler JL 4xe models - see JKS 4xe-specific lift kit
• Does not fit Wrangler JL Rubicon 392 models
• 4-Door (Unlimited JL) only - for 2-Door Wrangler JL J-Venture see JSPEC118KFA
• Factory wheels cannot be reinstalled without wheel spacers after lift
• HD front springs recommended for builds with aftermarket winch and bumper combination
• HD rear springs recommended for builds with rear-mounted full-size spare tire
• Maximum recommended tire size: 35x12.50 (Sport/Sahara/Willys); 37x12.50 (Rubicon with 5" backspacing wheels)
• HD Rate Coil Spring upgrade available at time of order for added payload capacity

Features

• JSPEC dual-rate front and rear coil springs (standard or HD rate) tuned specifically for the 4-Door JL platform at 2.5" lift
• Custom-valved FOX 2.0 Adventure Series IFP monotube gas shocks matched specifically to this JL 2.5" system
• JKS front adjustable track bar and rear track bar bracket correct axle positioning at lifted ride height
• JKS2033 Quicker Disconnect front sway bar links unlock up to 30% more front axle articulation on the trail
• Rear extended sway bar links correct operating angle and improve strength at lifted height
• Front caster cam locks correct front end caster angle after lift installation
• Front and rear bump stop extensions properly limit suspension up-travel at lifted height
• 100% bolt-on installation - no cutting or drilling required

Specifications

• Lift Height: 2-3.5 inches (nominal 2.5")
• Platform: Jeep Wrangler JL Unlimited 4-Door
• System Level: J-Venture (entry-level - retains OE control arms)
• Shock Series: FOX 2.0 Adventure Series IFP (custom-valved for this system)
• Spring Type: JSPEC dual-rate coil springs - Standard or HD Rate option
• Max Recommended Tire Size: 35x12.50 (Sport/Sahara/Willys); 37x12.50 (Rubicon)
• Installation Type: Bolt-on, no cutting or drilling
• Warranty: Limited Lifetime (JKS components); FOX Shocks covered by FOX limited warranty
• Made in USA

Included Components

• 2x JSPEC Dual-Rate Front Coil Springs (Standard or HD Rate)
• 2x JSPEC Dual-Rate Rear Coil Springs (Standard or HD Rate)
• 2x FOX 2.0 Adventure Series IFP Front Shocks (custom-valved)
• 2x FOX 2.0 Adventure Series IFP Rear Shocks (custom-valved)
• 1x JKS Front Adjustable Track Bar
• 1x Rear Track Bar Bracket
• 1x Pair JKS2033 Quicker Disconnect Front Sway Bar Links
• 1x Pair Rear Extended Sway Bar Links
• 1x Set Front Caster Cam Locks
• 1x Set Front and Rear Bump Stop Extensions
• 1x Installation hardware pack

Product Description

The JKS JSPEC117KFA is a complete 2.5" J-Venture suspension lift system for the 2018-2025 Jeep Wrangler JL Unlimited 4-Door. As JKS's entry-level J-Rated system for the JL platform, J-Venture retains the factory control arms and focuses on a clean, matched set of components - custom-wound JSPEC dual-rate coil springs paired with custom-valved FOX 2.0 Adventure Series IFP shocks - that work together to deliver a noticeably improved ride over stock while adding meaningful ground and tire clearance. Standard rate springs suit most builds, while an HD rate upgrade is available for JLs carrying heavy winch/bumper combos or rear-mounted spare tires.

The system corrects geometry at lifted height with a JKS front adjustable track bar, rear track bar bracket, and front caster cam locks. JKS2033 Quicker Disconnect front sway bar links provide up to 30% more front axle articulation at the trailhead, and rear extended sway bar links restore proper operating angle at the rear - an important JL-specific addition. At 2.5" of lift, Sport and Sahara models can run up to 35x12.50 tires, while Rubicon models can accommodate 37x12.50. Does not fit 4xe or Rubicon 392 models.