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Despite its long-standing reputation as an off-road monster and the vast selection of mods available, the Jeep WJ has always been known to suffer in highway ride quality after lifting. Many WJ lifts focus primarily on trail performance, but fail to take in account how the control arms and track bar will perform at their new, lifted angles in day to day driving.
Rough Country's new 4-inch X-Series Suspension kit answers this age-old problem, delivering outstanding off-road action while providing an incredibly smooth highway ride. Featuring newly designed durable adjustable lower control arms with durable rubber bushings, this new kit simulates the stock angle keeping your steering components under control.
This 4-inch WJ Suspension Lift also features an updated track-bar bracket, re-engineered to tie into the engine mount bolts, eliminating a common weak point and offering incredible support and rigidity. In addition this kit features a full set of N3 shocks, giving you premium vibration dampening equally suitable for off-road action or daily driving.
Easy bolt-on installation
Increased ground clearance
Levels the front with the rear of the vehicle
Lower control arms provide proper offset to allow for wider tires.
Kit maintains stock alignment for precise high speed handling and proper caster/pinion alignment.
Rear shock relocation keeps shocks clear from the tires.
X-Flex control arm features:
Flex joints feature a massive 2.5" diameter body and 1.25" thread.
Fully greasable.
Lower joints pivot up to 35 degrees.
Does NOT fit V8 models. Does NOT fit models with Quadra-Trac I, Quadra-Trac II, or Quadra-Drive. Does NOT fit models equipped with a rzeppa joint front driveshaft. Models equipped with a CV style front driveshaft may result in driveshaft vibration. If this occurs, replacing the driveshaft, axle yoke and / or transfer case yoke will need to be performed to rid the vehicle of driveline vibration.
Fitment Year: 1999 2000 2001 2002 2003 2004
Make: Jeep
Model: Grand Cherokee
Submodel: Laredo
Drive: AWD
Install Time: 6-8 hours
Front Components: Lifted coil springs Adjustable lower control arms Sway-bar quick disconnects Adjustable track bar Bumpstop extensions Transmission crossmember spacers Hardware
Rear Components: Lifted coil springs Upper control arm bracket Sway-bar brackets Bumpstop extensions Shock relocation kit Hardware
Manufacturer SKU: 639P
Most products ship directly from our vendor warehouses or distributor network. Shipping times can vary depending on the brand, product size, availability, and destination.
Large or oversized items such as lift kits, wheels, tires, bumpers, exhaust systems, and audio enclosures may require additional handling time or freight shipping.
If there is ever an issue with availability, shipping cost, or delivery timing, we will contact you before moving forward with the order.
Returns may be accepted on most new, unused, unopened items within 30 days of delivery. Items must be in original packaging and in resellable condition.
Installed, used, damaged, missing-parts, electrical, special-order, clearance, or custom-built items may not be eligible for return.
Return shipping is normally the customer’s responsibility unless the return is due to our mistake, such as the wrong item being shipped.
Before sending anything back, please contact Kaos Offroad so we can review the order and provide return instructions. Returns sent without approval may be refused.
Some products are vehicle-specific. Please verify fitment before ordering. If you are unsure, contact us with your year, make, model, sub-model, and any relevant details before purchasing.
Original shipping charges, freight charges, and vendor restocking fees may be non-refundable depending on the item and supplier policy.


