JK40LKLT-SX – 4 in. Dual Rate Long Travel Long Arm Suspension Lift Kit

4 in. Long Arm Lift Kit with Dual Rate Long Travel Coil Springs, Long Arm Adjustable Flex Links, Frame Brackets, Front Adjustable Track Bar, Rear Track Bar Bracket & Brace, Sway Bar End links, Bump Stop Spacer, Brake Line Extension Brackets.
Front and Rear Replacement Drive Shafts are Required.

Starting At: From: $2,764.40

California Residents
WARNING: Cancer and/or other Reproductive Harm. www.p65warnings.ca.gov

SKU: JK40LKLT-SX Categories: ,


Lift Height

4 in.

Max Tire Size



16-20 x 8



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.

Front and Rear Lower Control Arm Relocation Brackets make room for Long Arm Value Flex Lower Links. Value Flex Longer Lower Links adjustability allows proper caster settings to improve handling. Formed from 2-inch OD x 0.250 wall DOM tubing with pressed-in OEM style steel encased rubber bushings at the frame and the axle mount has Rock Jock’s 1-1/4-inch forged Johnny Joints. These Johnny Joints provide over 30 degrees of unrestricted Flex movement in any direction.

Front and Rear Adjustable Upper Control Arms keep in phase with lower links. Replacement Front Adjustable Track Bar includes Skyjacker installed pressed-in HD OEM style rubber bushing and an adjustable 3/4-inch 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.

Shocks are a key link in-between the chassis and your suspension. Front and rear damper capacity enhanced with ADX 2.0 Adventure Series Remote Reservoir Aluminum Monotube Shocks. ADX 2.0 has a race-inspired full-displaced valving system. Nitrogen charged with Internal Floating Piston Technology = Quickest Shock Reaction Time Ever.

Complete kit maintains OEM geometry angles, alignment specifications and structural strength.

Front and Rear Replacement Drive Shafts are Required.


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YearMakeModelFitment Info
2007JeepWrangler (JK) - 4-Door 2WD--
2008JeepWrangler (JK) - 4-Door 2WD--
2009JeepWrangler (JK) - 4-Door 2WD--
2010JeepWrangler (JK) - 4-Door 2WD--
2007JeepWrangler (JK) - 4-Door 4WD--
2008JeepWrangler (JK) - 4-Door 4WD--
2009JeepWrangler (JK) - 4-Door 4WD--
2010JeepWrangler (JK) - 4-Door 4WD--
2011JeepWrangler (JK) - 4-Door 4WD--
2012JeepWrangler (JK) - 4-Door 4WD--
2013JeepWrangler (JK) - 4-Door 4WD--
2014JeepWrangler (JK) - 4-Door 4WD--
2015JeepWrangler (JK) - 4-Door 4WD--
2016JeepWrangler (JK) - 4-Door 4WD--
2017JeepWrangler (JK) - 4-Door 4WD--
2018JeepWrangler (JK) - 4-Door 4WD--


Lift Kits
Leveling Kits
Coil Springs
Leaf Springs
Add a leafs
Fitted Leafs
Sway Bar End Links




Drive Shafts
Carrier Bearing Lowering Kits
Transfer Case Lowering Kits


Pitman Arms
Steering Arms


Brake Lines
Skid Plate
Spare Tire Relocation
Tailgate Saver
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