JKS JSPEC102KFA 2.5in J-Venture Lift Kit FOX 2007-2018 Jeep Wrangler JK 4-Door

Vehicle Fitment

• 2007-2018 Jeep Wrangler JK Unlimited 4-Door (Sport, Sahara, Rubicon, X, Freedom, Altitude, Dragon, Moab, Chief, Call of Duty), 4WD

Fitment Notes

• 4-Door (Unlimited JK) only - for 2-Door Wrangler JK 2.5" lift see JSPEC103KFA
• 2012-2018 models with 3.6L Pentastar V6 require exhaust modification for driveshaft clearance at full suspension droop; use JKS exhaust extension kit JKS8150
• Rubicon sway bar link hardware included in kit
• Factory wheels cannot be reinstalled without wheel spacers after lift
• Maximum recommended tire size: 33x12.50 on 16x8, 17x9, or 20x9 wheels with 4.5" backspacing (trimming may be required)
• JKS8150 exhaust extensions sold separately for 3.6L Pentastar applications

Features

• JSPEC dual-rate front and rear coil springs deliver a composed on-road ride that firms up progressively under off-road loads
• Custom-valved FOX 2.0 Adventure Series IFP monotube gas shocks tuned specifically for this 2.5" 4-Door system
• JKS front adjustable track bar and rear track bar relocation bracket correct axle positioning at lifted ride height
• JKS2034 Quicker Disconnect front sway bar links unlock up to 30% more front axle articulation on the trail
• Brake line relocation brackets utilize factory mounting holes and locating tabs for secure, no-rotate fitment
• Front and rear bump stop extensions properly limit suspension up-travel at lifted height
• Front caster cam locks correct front end caster angle after lift installation
• 100% bolt-on installation - no cutting or drilling required

Specifications

• Lift Height: 2.5 inches
• Platform: Jeep Wrangler JK 4-Door (Unlimited)
• Shock Series: FOX 2.0 Adventure Series IFP (custom-valved for this system)
• Front Shock Part Number: FOX98450351
• Rear Shock Part Number: FOX98450359
• Spring Type: JSPEC dual-rate coil springs, front and rear
• Max Recommended Tire Size: 33x12.50
• Recommended Wheel Backspacing: 4.5 inches
• 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
• 2x JSPEC Dual-Rate Rear Coil Springs
• 2x FOX 2.0 Adventure Series IFP Front Shocks - FOX98450351 (custom-valved)
• 2x FOX 2.0 Adventure Series IFP Rear Shocks - FOX98450359 (custom-valved)
• 1x JKS Front Adjustable Track Bar
• 1x Rear Track Bar Relocation Bracket
• 1x Pair JKS2034 Quicker Disconnect Front Sway Bar Links
• 1x Pair Front Brake Line Relocation Brackets
• 1x Set Front and Rear Bump Stop Extensions
• 1x Set Front Caster Cam Locks
• 1x Rubicon sway bar link hardware
• 1x Installation hardware pack

Product Description

The JKS JSPEC102KFA is a complete 2.5" J-Venture suspension lift system for the 2007-2018 Jeep Wrangler JK Unlimited 4-Door. Every component is engineered and assembled in the USA, then matched and tuned to work as a cohesive system - not a parts pile. Custom-wound JSPEC dual-rate coil springs provide a plush highway ride that firms up predictably under trail loads, while custom-valved FOX 2.0 Adventure Series IFP monotube shocks are tuned specifically for the 4-Door JK at 2.5" lift. The result is a system that rides and handles like the factory intended - just with more clearance for up to 33" tires.

Geometry correction is built into every kit: a JKS front adjustable track bar and rear track bar relocation bracket keep the front axle properly centered, while front caster cam locks restore correct steering geometry after the lift. JKS2034 Quicker Disconnect sway bar links disconnect in seconds at the trailhead for up to 30% more front articulation, and brake line relocation brackets integrate with factory mounting tabs to prevent rotation. Note: 2012-2018 models with the 3.6L Pentastar V6 require the JKS8150 exhaust extension kit for driveshaft clearance at full suspension droop.