Skyjacker 07-18 Jeep Wrangler (JKU) 4in Lift Kit Component Box w/ Dual Rate Long Travel Springs

Skyjacker specifically engineered a progressive 2-stage dual rate long travel coil. First Flex Rate stage delivers a comfortable ride with the ability to flex\expand during full articulation as the suspension drops (full droop). This keeps the coil springs seated in the upper coil mount/bucket and the tires in contact with the terrain. Second Ride Rate stage only engages after compression past Flex Rate. Shocks are a key link in-between the chassis and the moving parts of your suspension. Their key role is to optimize your suspension by keeping your tires in contact with the terrain. Skyjackers ADX 2.0 Adventure Series Remote Reservoir Aluminum Monotube Shocks deliver modern technology in the design with an innovative off-road race-inspired full-displaced valving system. Engineered for higher speed applications, remote reservoir shocks still perform at crawl. The external remote reservoir separates the nitrogen gas from the oil with an Internal Floating Piston (IFP). The majority of the reservoir contains pressurized nitrogen gas. The IFP prevents the gas and oil from mixing or foaming (cavitation). The replacement Front Adjustable Track Bar includes Skyjacker installed pressed-in HD OEM style rubber bushing and an adjustable 3/4- in. Heavy-Duty Rod End, Jam Nut and Alignment Bushings. Front and Rear Bump Stop Spacers bolt onto the axle bump pads and keep the suspension travel safely in check. Rear Extended Length Sway Bar End Links allow full articulation as the suspension drops (full droop). Rear Track Bar Lower Axle Mount Bracket mounts directly to the rear axle housing to correct the track bar angle. Dana 44 Rear Track Bar Mount Brace strengthens the factory mount that is prone to failure. The track bar bracket and brace create better handling with less side-to-side sway. Eccentric alignment cam bolts correct caster and pinion angles (front lower axle and rear upper front). Comes complete with Bushings and High-Grade Mounting Hardware.

Additional Information

4in. JK 4-DR;DR-LONGTRAV

These additional application notes are supplied by the manufacturer and collated from multiple year ranges. Not all of these notes may apply to every year or every variant. Please contact a StreetFX agent for clarification if required.

This item is available as a full kit.
Select a kit option in the following table if you are looking for this item in a bundle form with all associated components.

Kit option/s:

Thumb	SKU	Kit Title
	skyJK40BKXLT	Skyjacker Jeep Wrangler JKU 4in Dual Rate Long Travel Suspension Lift w/ ADX 2.0 Remote Res Shock (1x skyJK40BLT, 1x skyJK4070X)
	skyJK40BKXMLT	Skyjacker 07-18 Jeep Wrangler Jk Unlimited 4 In. Susp. Lift Kit With ADX M2.0 Aluminum Monotube (1x skyJK4070XM, 1x skyJK40BLT)

• Allows Full Articulation as Suspension Drops/Full Droop
• Bump Stop Spacers Keep Suspension Travel Safely In Check
• Complete With All High Quality Grade Mounting Hardware
• Consistent Controlled Stability With Smooth Riding Comfort
• Dana 44 Track Bar Mount Brace Strengthens OEM Mount
• Delivers A Comfortable Ride/Flex For Increased Articulation
• Extended Length Sway Bar End Links Allow Full Articulation
• Flex Stage/Ride Stage Dual Rate Long Travel Coil Springs
• Specifically Engineered Progressive Variable Rate Springs
• Track Bar Bracket Centers Axle Under Vehicle Properly
• Yields More Lift In The Front For A More Level Stance

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Product Details

Product Downloads

#	Document Type	Download
1.	Installation Instructions

Installation guides, warranty details, and other supporting documents are provided by the supplier. In some cases, these files may originate from regions outside your locale, meaning instructions, warranty procedures, and images may not fully align with your specific vehicle or region (e.g., LHD vs. RHD differences, return policies, etc.). If you need clarification, please contact a StreetFX support agent.

Reference Information

Skyjacker Suspension Lift Kit, 4 in, Front and Rear Coil Springs, Front and Rear Track Bar, Sway Bar End Links, Jeep, Kit

Skyjacker suspension lift kits provide a smooth, comfortable ride, while responding to on or off-road conditions. They'll help you get the right height, clearance, and attitude for your truck or Jeep—while maintaining a "factory" ride quality and improving handling. Standard Flex, Value Flex, Rock Ready, Single Flex, and Double Flex versions are available, depending on your application. The lift kits come with all of the necessary mounting hardware and detailed instructions, and they're available for 2WD or 4WD vehicles.