JKS Manufacturing 18-21 Jeep Wrangler JL/JK Adjustable J-Flex Upper Control Arms - Rear

Part Type

Suspension Control Arm Kit

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
	foxjksJSPEC125FRS	JKS 18-21 Jeep Wrangler JL J-Krawl 2.5in 4Dr w/Fox 3.0 Race Series IBP Shocks STD Rate Coils (1x fox883-26-057, 1x fox883-26-058, 1x jksJSPEC1251, 1x jksJSPEC1259, 1x jksJSPEC1312, 1x jksJKS1625, 1x jksJKS1661, 1x jksJKS1616, 1x jksJKS1666)
	foxjksJSPEC125PES	JKS 18-21 Jeep JL J-Krawl 2.5in 4Dr w/Fox 2.5 Performance Elite Shocks STD Rate Coils (1x fox883-26-051, 1x fox883-26-055, 1x jksJSPEC1251, 1x jksJSPEC1259, 1x jksJSPEC1312, 1x jksJKS1625, 1x jksJKS1661, 1x jksJKS1616, 1x jksJKS1666)
	foxjksJSPEC126FRS	JKS 18-21 Jeep Wrangler JL J-Krawl 2.5in 4Dr w/Fox 3.0 Race Series IBP Shocks HD Rate Coils (1x fox883-26-057, 1x fox883-26-058, 1x jksJSPEC1252, 1x jksJSPEC1258, 1x jksJSPEC1312, 1x jksJKS1625, 1x jksJKS1661, 1x jksJKS1616, 1x jksJKS1666)
	foxjksJSPEC126PES	JKS 18-21 Jeep JL J-Krawl 2.5in 4Dr w/Fox 2.5 Performance Elite Shocks HD Rate Coils (1x fox883-26-051, 1x fox883-26-055, 1x jksJSPEC1252, 1x jksJSPEC1258, 1x jksJSPEC1312, 1x jksJKS1625, 1x jksJKS1661, 1x jksJKS1616, 1x jksJKS1666)
	foxjksJSPEC127FRS	JKS 18-21 Jeep Wrangler JL J-Krawl 3.5in 4Dr w/Fox 3.0 Race Series IBP Shocks STD Rate Coils (1x fox883-26-057, 1x fox883-26-058, 1x jksJSPEC1351, 1x jksJSPEC1359, 1x jksJSPEC1312, 1x jksJKS1625, 1x jksJKS1661, 1x jksJKS1616, 1x jksJKS1666)
	foxjksJSPEC127PES	JKS 18-21 Jeep JL J-Krawl 3.5in 4Dr w/Fox 2.5 Performance Elite Shocks STD Rate Coils (1x fox883-26-051, 1x fox883-26-055, 1x jksJSPEC1351, 1x jksJSPEC1359, 1x jksJSPEC1312, 1x jksJKS1625, 1x jksJKS1661, 1x jksJKS1616, 1x jksJKS1666)
	foxjksJSPEC128FRS	JKS 18-21 Jeep Wrangler JL J-Krawl 3.5in 4Dr w/Fox 3.0 Race Series IBP Shocks HD Rate Coils (1x fox883-26-057, 1x fox883-26-058, 1x jksJSPEC1352, 1x jksJSPEC1358, 1x jksJSPEC1312, 1x jksJKS1625, 1x jksJKS1661, 1x jksJKS1616, 1x jksJKS1666)
	foxjksJSPEC128PES	JKS 18-21 Jeep JL J-Krawl 3.5in 4Dr w/Fox 2.5 Performance Elite Shocks HD Rate Coils (1x fox883-26-051, 1x fox883-26-055, 1x jksJSPEC1352, 1x jksJSPEC1358, 1x jksJSPEC1312, 1x jksJKS1625, 1x jksJKS1661, 1x jksJKS1616, 1x jksJKS1666)
	foxjksJSPEC129KFC	JKS Jeep JL J-Krawl MAX 3.5in 4Dr w/Fox 2.5 Series R/R Coil-over w/DSC (1x jksJKS2512, 1x jksJSPEC1313, 1x jksJKS1625, 1x jksJKS1661, 1x jksJKS2511, 1x jksJKS2518, 1x jksJKS1616, 1x jksJKS1666, 1x fox884-06-252, 1x fox884-06-253)
	foxjksJSPEC147FRS	JKS 18-21 Jeep Wrangler JL J-Krawl 3in 2Dr w/Fox 3.0 Race Series IBP Shocks STD Rate Coils (1x fox883-26-057, 1x fox883-26-058, 1x jksJSPEC1251, 1x jksJSPEC1259, 1x jksJSPEC1312, 1x jksJKS1625, 1x jksJKS1661, 1x jksJKS1616, 1x jksJKS1666)
	foxjksJSPEC147PES	JKS 18-21 Jeep JL J-Krawl 3in 2Dr w/Fox 2.5 Performance Elite Shocks STD Rate Coils (1x fox883-26-051, 1x fox883-26-055, 1x jksJSPEC1251, 1x jksJSPEC1259, 1x jksJSPEC1312, 1x jksJKS1625, 1x jksJKS1661, 1x jksJKS1616, 1x jksJKS1666)
	foxjksJSPEC148FRS	JKS 18-21 Jeep Wrangler JL J-Krawl 3in 2Dr w/Fox 3.0 Race Series IBP Shocks HD Rate Coils (1x fox883-26-057, 1x fox883-26-058, 1x jksJSPEC1252, 1x jksJSPEC1258, 1x jksJSPEC1312, 1x jksJKS1625, 1x jksJKS1661, 1x jksJKS1616, 1x jksJKS1666)
	foxjksJSPEC148PES	JKS 18-21 Jeep JL J-Krawl 3in 2Dr w/Fox 2.5 Performance Elite Shocks HD Rate Coils (1x fox883-26-051, 1x fox883-26-055, 1x jksJSPEC1252, 1x jksJSPEC1258, 1x jksJSPEC1312, 1x jksJKS1625, 1x jksJKS1661, 1x jksJKS1616, 1x jksJKS1666)
	foxjksJSPEC161FRS	JKS 20-21 Jeep Wrangler JL J-Krawl 3.5in 4Dr w/Fox 3.0 Factory Race Series IBP Shocks - DIESEL (1x fox883-26-077, 1x fox883-26-078, 1x jksJSPEC1352, 1x jksJSPEC1359, 1x jksJSPEC1312, 1x jksJKS1625, 1x jksJKS1661, 1x jksJKS1616, 1x jksJKS1666)
	foxjksJSPEC161PES	JKS 20-21 Jeep JL J-Krawl 3.5in 4Dr w/Fox 2.5 Performance Elite Shocks - DIESEL (1x fox883-26-057, 1x fox883-26-058, 1x jksJSPEC1352, 1x jksJSPEC1359, 1x jksJSPEC1312, 1x jksJKS1625, 1x jksJKS1661, 1x jksJKS1616, 1x jksJKS1666)
	foxjksJSPEC169FRS	JKS 20-21 Jeep Wrangler JL J-Krawl 2.5in 4Dr w/Fox 3.0 Factory Race Series IBP Shocks - DIESEL (1x fox883-26-057, 1x fox883-26-058, 1x jksJSPEC1252, 1x jksJSPEC1259, 1x jksJSPEC1312, 1x jksJKS1625, 1x jksJKS1661, 1x jksJKS1616, 1x jksJKS1666)
	foxjksJSPEC169PES	JKS 20-21 Jeep JL J-Krawl 2.5in 4Dr w/Fox 2.5 Performance Elite Shocks - DIESEL (1x fox883-26-051, 1x fox883-26-055, 1x jksJSPEC1252, 1x jksJSPEC1259, 1x jksJSPEC1312, 1x jksJKS1625, 1x jksJKS1661, 1x jksJKS1616, 1x jksJKS1666)
	jksJSPEC125KFP	JKS Jeep JL J-Krawl 2.5in 4Dr w/Fox 2.0 Performance Shocks STD Rate Coils (2x fox985-24-179, 2x fox985-24-180, 1x jksJSPEC1251, 1x jksJSPEC1259, 1x jksJSPEC1312, 1x jksJKS1625, 1x jksJKS1661, 1x jksJKS1616, 1x jksJKS1666)
	jksJSPEC126KFP	JKS Jeep JL J-Krawl 2.5in 4Dr w/Fox 2.0 Performance Shocks HD Rate Coils (2x fox985-24-179, 2x fox985-24-180, 1x jksJSPEC1252, 1x jksJSPEC1258, 1x jksJSPEC1312, 1x jksJKS1625, 1x jksJKS1661, 1x jksJKS1616, 1x jksJKS1666)
	jksJSPEC127KFP	JKS Jeep JL J-Krawl 3.5in 4Dr w/Fox 2.0 Performance Shocks STD Rate Coils (2x fox985-24-179, 2x fox985-24-180, 1x jksJSPEC1351, 1x jksJSPEC1359, 1x jksJSPEC1312, 1x jksJKS1625, 1x jksJKS1661, 1x jksJKS1616, 1x jksJKS1666)
	jksJSPEC128KFP	JKS Jeep JL J-Krawl 3.5in 4Dr w/Fox 2.0 Performance Shocks HD Rate Coils (2x fox985-24-179, 2x fox985-24-180, 1x jksJSPEC1352, 1x jksJSPEC1358, 1x jksJSPEC1312, 1x jksJKS1625, 1x jksJKS1661, 1x jksJKS1616, 1x jksJKS1666)
	jksJSPEC147KFP	JKS Jeep JL J-Krawl 3in 2Dr w/Fox 2.0 Performance Shocks STD Rate Coils (2x fox985-24-179, 2x fox985-24-180, 1x jksJSPEC1251, 1x jksJSPEC1259, 1x jksJSPEC1312, 1x jksJKS1625, 1x jksJKS1661, 1x jksJKS1616, 1x jksJKS1666)
	jksJSPEC148KFP	JKS Jeep JL J-Krawl 3in 2Dr w/Fox 2.0 Performance Shocks HD Rate Coils (2x fox985-24-179, 2x fox985-24-180, 1x jksJSPEC1252, 1x jksJSPEC1258, 1x jksJSPEC1312, 1x jksJKS1625, 1x jksJKS1661, 1x jksJKS1616, 1x jksJKS1666)
	jksJSPEC169KFP	JKS 20-21 Jeep JL J-Krawl 2.5in 4Dr w/Fox 2.0 Performance Shocks - DIESEL (2x fox985-24-179, 2x fox985-24-180, 1x jksJSPEC1252, 1x jksJSPEC1259, 1x jksJSPEC1312, 1x jksJKS1625, 1x jksJKS1661, 1x jksJKS1616, 1x jksJKS1666)
	jksJSPEC125KFA	JKS 18-21 Jeep JL J-Krawl 2.5in 4Dr w/Fox Adventure Series Shocks STD Rate Coils (1x jksJSPEC1251, 1x jksJSPEC1259, 1x jksJSPEC1312, 1x jksJKS1625, 1x jksJKS1661, 1x jksJKS1616, 1x jksJKS1666, 2x jksFOX98450323, 2x jksFOX98450328)
	jksJSPEC126KFA	JKS 18-21 Jeep JL J-Krawl 2.5in 4Dr w/Fox Adventure Series Shocks HD Rate Coils (1x jksJSPEC1252, 1x jksJSPEC1258, 1x jksJSPEC1312, 1x jksJKS1625, 1x jksJKS1661, 1x jksJKS1616, 1x jksJKS1666, 2x jksFOX98450323, 2x jksFOX98450328)
	jksJSPEC127KFA	JKS 18-21 Jeep JL J-Krawl 3.5in 4Dr w/Fox Adventure Series Shocks STD Rate Coils (1x jksJSPEC1351, 1x jksJSPEC1359, 1x jksJSPEC1312, 1x jksJKS1625, 1x jksJKS1661, 1x jksJKS1616, 1x jksJKS1666, 2x jksFOX98450323, 2x jksFOX98450328)
	jksJSPEC128KFA	JKS 18-21 Jeep JL J-Krawl 3.5in 4Dr w/Fox Adventure Series Shocks HD Rate Coils (1x jksJSPEC1352, 1x jksJSPEC1358, 1x jksJSPEC1312, 1x jksJKS1625, 1x jksJKS1661, 1x jksJKS1616, 1x jksJKS1666, 2x jksFOX98450323, 2x jksFOX98450328)
	jksJSPEC147KFA	JKS 18-21 Jeep JL J-Krawl 3in 2Dr w/Fox Adventure Series Shocks STD Rate Coils (1x jksJSPEC1251, 1x jksJSPEC1259, 1x jksJSPEC1312, 1x jksJKS1625, 1x jksJKS1661, 1x jksJKS1616, 1x jksJKS1666, 2x jksFOX98450323, 2x jksFOX98450328)
	jksJSPEC148KFA	JKS 18-21 Jeep JL J-Krawl 3in 2Dr w/Fox Adventure Series Shocks HD Rate Coils (1x jksJSPEC1252, 1x jksJSPEC1258, 1x jksJSPEC1312, 1x jksJKS1625, 1x jksJKS1661, 1x jksJKS1616, 1x jksJKS1666, 2x jksFOX98450323, 2x jksFOX98450328)
	jksJSPEC161KFA	JKS 20-21 Jeep JL J-Krawl 3.5in 4Dr w/Fox Adventure Series Shocks - DIESEL (1x jksJSPEC1352, 1x jksJSPEC1359, 1x jksJSPEC1312, 1x jksJKS1625, 1x jksJKS1661, 1x jksJKS1616, 1x jksJKS1666, 2x jksFOX98450323, 2x jksFOX98450328)
	jksJSPEC169KFA	JKS 20-21 Jeep JL J-Krawl 2.5in 4Dr w/Fox Adventure Series Shocks - DIESEL (1x jksJSPEC1252, 1x jksJSPEC1259, 1x jksJSPEC1312, 1x jksJKS1625, 1x jksJKS1661, 1x jksJKS1616, 1x jksJKS1666, 2x jksFOX98450323, 2x jksFOX98450328)
	jksJSPEC205PES	JKS 21-25 Jeep Wrangler JL 4XE J-Krawl 3in Suspension Lift Kit (1x fox883-26-051, 1x fox883-26-055, 1x jksJSPEC1352, 1x jksJSPEC1312, 1x jksJKS1625, 1x jksJKS1661, 1x jksJKS1616, 1x jksJKS1666, 1x jksJSPEC1357)
	jksJSPEC205KFP	JKS 21-25 Jeep Wrangler JL 4XE J-Krawl 3in Suspension Lift Kit w/ Fox 2.0 Performance Series Shocks (2x fox985-24-179, 2x fox985-24-180, 1x jksJSPEC1352, 1x jksJSPEC1312, 1x jksJKS1625, 1x jksJKS1661, 1x jksJKS1616, 1x jksJKS1666, 1x jksJSPEC1357)

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 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

2018-2024 Jeep Wrangler JL/2007-2024 Jeep Wrangler JK Rear Adjustable UCA

Upgrade your Jeep's off-road capability and reliability with JKS J-Flex adjustable control arms. Available for front and rear, upper and lower positions, they are CNC-bent from stout DOM tubing for proper clearance, and feature forged "flex" ends that allow you to fine-tune suspension geometry. They are fully adjustable, rebuildable, and greaseable. Plus, their heavy-duty threads and a hex shaped weld-in threaded bung make tightening of the included jam nuts super easy and secure.

At the non-adjustable end, you will have boxed ends (front upper arms) for increased strength, or factory-style or premium OE-style rubber bushings for quiet, maintenance-free operation. JKS J-Flex control arms are powdercoated for a long-lasting finish. Select the arms designed for your Jeep.