Suspension and Components Suspension Kits

Rough Country

4 Inch Jeep Long Arm Upgrade Kit 99-04 Grand Cherokee WJ Rough Country

$1,299.95

SKU: R04C 90900U

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Special Order
Ships in 4–6 weeks
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

Part #: 90900U

Aggressive appearance Increased ground clearance HD 0.25 inch thick crossmember Lower control arms feature high clearance design Extreme travel long arms keep optimum alignment and give optimum articulation.X-Flex control arm features: Clevite brand OEM style rubber bushings. Flex joints feature a massive 2.5 Inch diameter body and 1.25 inch thread. Fully greasable. Upper joints pivot up to 20 degrees. Lower joints pivot up to 35 degrees.Features:Aggressive appearanceIncreased ground clearanceHD 0.25 inch thick crossmemberLower control arms feature high clearance designExtreme travel long arms keep optimum alignment and give optimum articulation.X-Flex control arm features: Clevite brand OEM style rubber bushings.Flex joints feature a massive 2.5 Inch diameter body and 1.25 inch thread.Fully greasable.Upper joints pivot up to 20 degrees.Lower joints pivot up to 35 degrees.Notes: Does Not fit AWD models. 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. CV Driveshaft ExampleDetails:Sold As KitDrive 4WDLift Height 4.0 inchThickness 0.25 inchFront Components Adjustable upper control arms Adjustable lower control arms Crossmember Transfer case skid plate Sway-bar quick disconnects Bumpstop brackets Brake line brackets HardwareRear Components Adjustable y-link upper control arm Adjustable lower control arms Long arm frame brackets Long arm axle mount Sway-bar brackets Hardware

MIA's Description

The Rough Country 90900U is a 4-inch Long Arm Upgrade Kit for Jeep Grand Cherokee WJ 4WD models (1999-2004). It includes adjustable high-clearance X-Flex upper and lower control arms, a 1/4-inch thick steel crossmember, skid plate, and sway bar disconnects, designed to improve off-road handling and articulation.

Fitment

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Specifications

BrandRough Country
Part NumberR04C 90900U

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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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