JKS JSPEC133KNS J-Kontrol 3.5-Inch Suspension Lift Kit with Shock Extension Brackets Standard Rate Coils

The JKS JSPEC133KNS is a J-Kontrol 3.5-inch suspension lift kit designed for the 2-Door Jeep Wrangler JK. As a step up from JKS J-Venture systems, the J-Kontrol is a true bolt-on suspension solution that delivers exceptional stability both on and off the road.

Key Features:

• Front and Rear Dual-Rate Coil Springs — Standard rate JSPEC coils are custom wound to provide excellent ride quality across all terrain types
• Shock Extension Brackets — Allow use of factory or aftermarket shocks at the correct geometry for the added lift height
• Front Adjustable Track Bar and Rear Track Bar Bracket — Corrects axle positioning under the vehicle to ensure straight, true tracking after the lift
• Front Control Arm Correction Brackets — Flatten upper and lower control arm angles to restore caster and improve on-road handling without requiring new control arms
• HD Drag Link Flip Kit with Track Bar Bracket — Improves steering angles to mimic factory geometry and eliminate bump steer common to lifted JK models
• Front Sway Bar Quicker Disconnects and Brake Line Brackets — Enable increased off-road articulation while maintaining on-road comfort
• Front and Rear Bump Stop Extensions — Properly limit suspension up-travel to protect springs and shocks at full compression

Built with premium-grade materials and manufactured in the USA, the J-Kontrol system works with your Jeep's stock control arms to deliver a balanced combination of trail-ready capability and comfortable daily driving. JKS Manufacturing backs this kit with a Limited Lifetime Warranty against product failure for the original purchaser.

Note: 2012–2018 models equipped with the 3.6L Pentastar engine require exhaust modification for driveshaft clearance at full suspension droop — use JKS part #8150 exhaust extensions.