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JKS Manufacturing 18-21 Jeep Wrangler JL Adjustable J-Flex Lower Control Arms - Rear

  • Backed by real installs and tuning experience at FAST of West Chester
32 in stock

Everyday Low Price:

$371.95
$371.95
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Your Jeep Wrangler JL will benefit from JKS J-Flex adjustable rear lower control arms. They adjust for proper geometry while increasing driving comfort on the road. J-Flex arms are built from heavy duty 2" OD x .250-wall DOM tubing and CNC bent for additional clearance. At the axle mount, J-Flex arms feature premium OE style rubber bushings to absorb noise and reduce vibrations for a comfortable, quiet ride and maintenance-free operation. At the frame-side mount, J-Flex arms incorporate a unique hex-shaped threaded bung for easy adjustment of the forged flex end and 1-1/4"-12 threads jam nut Flex end design allows for 30-degrees of misalignment (15 in either direction) for impressive articulation and are greaseable to ensure long bushing life. When the time comes, JKS flex ends are rebuildable. As with all JKS control arms, these J-Flex lower control arms come finished in a durable gloss black powder coat finish and are backed by JKS™s limited lifetime warranty. Sold in pairs.

  • Improved strength and performanc

    This Part Fits:

    Year Make Model Submodel
    2021 Jeep Wrangler 80th Anniversary
    2021,2023 Jeep Wrangler Freedom
    2023 Jeep Wrangler High Altitude
    2023-2025 Jeep Wrangler High Altitude 4xe
    2023 Jeep Wrangler High Tide
    2021 Jeep Wrangler Islander
    2018-2026 Jeep Wrangler Rubicon
    2023-2024 Jeep Wrangler Rubicon 392
    2024-2025 Jeep Wrangler Rubicon 392 Final Edition
    2023-2025 Jeep Wrangler Rubicon 4xe
    2024-2026 Jeep Wrangler Rubicon X
    2024-2025 Jeep Wrangler Rubicon X 4xe
    2023,2026 Jeep Wrangler Sahara
    2023-2024 Jeep Wrangler Sahara 4xe
    2023 Jeep Wrangler Sahara Altitude
    2018-2026 Jeep Wrangler Sport
    2023 Jeep Wrangler Sport Altitude
    2018-2026 Jeep Wrangler Sport S
    2024-2025 Jeep Wrangler Sport S 4xe
    2021 Jeep Wrangler Unlimited 80th Anniversary
    2021 Jeep Wrangler Unlimited Freedom
    2021-2022 Jeep Wrangler Unlimited High Altitude
    2021-2022 Jeep Wrangler Unlimited High Altitude 4xe
    2022 Jeep Wrangler Unlimited High Tide
    2021 Jeep Wrangler Unlimited Islander
    2018-2019 Jeep Wrangler Unlimited Moab
    2018-2022 Jeep Wrangler Unlimited Rubicon
    2021-2022 Jeep Wrangler Unlimited Rubicon 392
    2021-2022 Jeep Wrangler Unlimited Rubicon 4xe
    2018-2022 Jeep Wrangler Unlimited Sahara
    2021-2022 Jeep Wrangler Unlimited Sahara 4xe
    2021-2022 Jeep Wrangler Unlimited Sahara Altitude
    2018-2022 Jeep Wrangler Unlimited Sport
    2021-2022 Jeep Wrangler Unlimited Sport Altitude
    2018-2022 Jeep Wrangler Unlimited Sport S
    2021-2022 Jeep Wrangler Unlimited Willys
    2021-2022 Jeep Wrangler Unlimited Willys Sport
    2021-2026 Jeep Wrangler Willys
    2023-2025 Jeep Wrangler Willys 4xe
    2021-2024 Jeep Wrangler Willys Sport
  • Earn FAST points on this part!
  • Backed by real-world installs
  • FAST WC Team Approved
JKS Manufacturing 18-21 Jeep Wrangler JL Adjustable J-Flex Lower Control Arms - Rear

$371.95

Why Enthusiasts Trust FAST of West Chester

  • I can't recommend this place enough. Being able to trust a shop in the performance world is big. The 2hr drive to get there, is worth knowing the job will be done right. Very happy to have found this shop, to
    support my builds going forward.

    Donald Wojnar

  • I recently had the pleasure of working with FAST of West Chester for some performance upgrades on my 2022 WRX, and the experience was nothing short of exceptional. I opted for a Borla S-Type exhaust and Cygnus Coilovers, and the team at FAST nailed the installation, fitment, and setup to a T.

    Adam Cranston

  • The team at FAST are excellence in every way. First, I consulted with Dave on mods for my HPDE track car. He listened and advised me on the best parts & mods to achieve my goals. He was patient & gave me space to research the options presented & worked with me through several changes before we built. Second, the build execution was flawless, proper heat shielding, bracing and poly everywhere. All components worked as advertised.

    Bryce Budd

  • This place has been my go to shop for all things Subaru. From simple service to performance parts and tuning, they have been top notch.

    William Brunell

  • Excellent shop. They installed a Cobb Stage 2 DP and Whiteline Sway bars and end links on my 2013 WRX. The work was done right and clean. The estimate was accurate. They were very knowledgeable, friendly and gave me the straight scoop on exactly what I was getting for the money
    and what I needed to get where I want to be with it. I'd recommend them
    to any car enthusiast.

    Devin Greco

Does it come with a warranty?

Most products we carry include a manufacturer warranty. Since we work with top performance brands, warranty coverage can vary by product. If you have questions about a specific item, reach out — we’re happy to help.

Do you offer installation help or advice?

Yes — we don’t just sell parts, we install and tune them too. FAST of West Chester is a real performance shop, and we’ve worked hands-on with many of the products we carry. If you have questions about fitment, installs, or building your setup, our team can point you in the right direction.

How fast is shipping?

Many of our products ship the same day or next business day, depending on availability. We work hard to get parts out fast so you can get your build moving without delays.

What’s your return policy?

Returns for exchange or refund are accepted within 30 days of receiving your order. Items must be in new, unused condition and in original packaging. If you have any questions, our team will help make the process easy.

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