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SKU: CRL-J-JL-K16 ★★★★★ (132 reviews)
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LIFETIME WARRANTY
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FITS YOUR EXACT VEHICLE
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SHIPS IN 1–3 DAYS
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MADE IN UTAH, USA
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$ 3,541.08 3541.08 USD $ 3,727.45

$ 3,727.45

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🔧 Built to order · Ships in 1–3 business days

COLOR 11 colors — pick yours
https://jerdev.core4x4.com/web/image/product.template/1665/image_1920?unique=a7bad1a
SKU: CRL-J-JL-K16
Fits: 2018 - Present Jeep Wrangler JL / JLU Add vehicle
Add Vehicle Google 5.0 ★★★★★ (132 reviews)

$ 3,541.08 3541.08 USD $ 3,727.45

$ 3,727.45

Build Your Kit

  • Vehicle
    Confirm this matches your vehicle. Use Shop by Vehicle to filter correctly.
  • Brand
  • Color
    Powder coat color for control arms and track bars. Does not affect performance.
  • Series
    Cruise: daily driving and light off-road. Camp: overlanding. Crawl: aggressive rock crawling.
  • Lift Size
    Choose your current front lift height. Measure from center of wheel to fender if unsure.
  • Hardware
    Choose upgraded hardware if your factory hardware is worn, damaged, or missing.
  • Drag Link Orientation
    Select flipped drag link only if your steering has already been converted to over-the-knuckle.
  • Stabilizer Clamp
    Match your steering stabilizer mounting style. Standard clamp, hydraulic assist, or tie rod clamp.
  • Note to Core4x4:

Select Color to see price and add to cart.

WHAT’S INCLUDED
4
Upper Control Arms
4
Lower Control Arms
2
Front Track Bars
2
Rear Track Bars
4
End Links

4–8 hr install Moderate Alignment recommended Lifetime warranty on all non-wear items Made In USA

Made in USA Orem, Utah
Lifetime Guarantee Unconditional
10 Colors In-house powder coat
Ships in 3 Days From our UT facility
Fully Adjustable 0-6" of lift
3 X-Series Options Only Core 4x4

Why Builders Choose CORE 4X4

Warranty facts, not marketing language.

vs. MetalCloak

Their “lifetime” language refers to their service model. Actual parts warranty: 1 year. Ours: lifetime.

vs. Teraflex

Skip a maintenance interval? Their warranty voids. Ours doesn’t.

vs. Clayton Off Road

Clayton warrants their Johnny Joints for 90 days. We cover ours for life.

The Ultimate All-Inclusive Suspension and Steering Solution

Transform your Jeep Wrangler JL with the Crawl Series Total Suspension Control Kit (CRL-J-JL-K16). This comprehensive system delivers unmatched control, durability, and performance, combining all the essential components needed for a complete suspension overhaul. From superior axle alignment to precise steering geometry and enhanced off-road articulation, this kit is designed to elevate your Jeep’s capabilities on and off the trail. Simply pair it with your choice of springs and shocks to achieve a full suspension revamp or lift kit.

What's Included in the Kit

  • Crawl Series Front Upper Control Arms (CRL-J-JL-FU2)
  • Crawl Series Front Lower Control Arms (CRL-J-JL-FL2)
  • Crawl Series Rear Upper Control Arms (CRL-J-JL-RU2)
  • Crawl Series Rear Lower Control Arms (CRL-J-JL-RL2)
  • Crawl Series Front Track Bar (CRL-J-JL-FTB1)
  • Crawl Series Rear Track Bar (CRL-J-JL-RTB1)
  • Crawl Series Front End Links (CRL-J-JL-FEL2)
  • Crawl Series Rear End Links (CRL-J-JL-REL2)
  • 2.5-Ton Heavy Duty Aluminum Steering Kit (ST-J-JL-SK2)

Key Features and Benefits

  • Complete suspension overhaul – Includes 8 adjustable control arms, front and rear track bars, and front and rear sway bar end links, ensuring precise axle alignment, optimal suspension geometry, and enhanced handling for lifted Jeeps.
  • Heavy-duty aluminum steering kit – The 2.5-ton steering kit, crafted from 2-inch 7075 aluminum with memory properties, absorbs impacts and returns to its original shape, delivering superior strength and reliability in extreme off-road conditions.
  • Improved stability and articulation – Johnny Joints at both ends of the control arms, track bars, and end links provide unmatched off-road articulation and smooth, bind-free movement while maintaining on-road stability and comfort.
  • Tailored for lifts from 0 to 6 inches – Fully adjustable components accommodate lifts from 0 to 6 inches, allowing for precise alignment correction, axle centering, and optimal caster and pinion angle adjustments. For custom setups over 6 inches, additional solutions are available upon request.

Build the Ultimate Lift Kit

Combine this kit with your preferred springs and shocks to create a custom suspension system that delivers unmatched performance, durability, and off-road capability.

Two-Stage Powder Coating

Each component undergoes a rigorous two-stage powder coating process. A zinc primer base provides exceptional corrosion resistance, while the durable topcoat—available in 10 customizable colors—adds extra protection and a personalized finish to your Jeep.

Made in the USA

Proudly manufactured in Orem, UT, the Crawl Series Total Suspension Control Kit reflects CORE 4X4’s dedication to American craftsmanship. By managing production in-house, we ensure stringent quality standards and support local industries while offering competitive pricing.

Optional Hardware Upgrade

Designed for straightforward installation, the kit uses factory hardware. Optional Grade 8 hardware kits are available separately for Jeeps with rusted or stubborn bolts, ensuring a smooth and hassle-free process.

Upgrade Today!

The Crawl Series Total Suspension Control Kit (CRL-J-JL-K16) is the most comprehensive upgrade for Jeep Wrangler JL owners seeking ultimate performance and reliability. With all the critical suspension and steering components included—control arms, track bars, sway bar end links, and a heavy-duty steering kit—this all-inclusive package ensures your Jeep is ready for any terrain. Whether you’re conquering rugged trails or navigating daily commutes, this American-made kit delivers unmatched control, durability, and articulation. Upgrade your suspension today with Crawl Series and experience the difference.


Make Model Submodel Years
Jeep Wrangler 2018 - Present

Vehicle Jeep Wrangler JL / JLU (18–Present)
Brand CORE 4X4
Color Black or Blue or Charcoal or Green or LightGreen or Orange or Purple or Red or White or Yellow or Custom Color - Other than what is listed above. Extra charge varies. We will reach out after order is placed.
Series Crawl Series
Lift Size Stock Height or Lifted 1" or Lifted 2" or Lifted 3" or Lifted 4" or Lifted 5" or Lifted 6" or Lifted 7" or Lifted 8" or Custom length or 1/2 sizes (put desired length in the Order Notes)
Hardware No Hardware or Complete Kit
Drag Link Orientation Factory Mounting (under the knuckle) or Drag Link Flip w/ Tapered Sleeve And Drill Bit (over the knuckle)
Stabilizer Clamp Standard Clamp or Hydraulic Assist Clamp

Select your lift size in Step 1 — the kit ships with the correct geometry for that height. If you’re running a non-standard setup, call us before ordering and we’ll confirm compatibility.

Death wobble is a geometry problem, not just worn parts. Cruise Series corrects caster angle and eliminates the flex points that let shimmy start. Replacing one part at a time delays the fix — this replaces the geometry.

Yes, if you’ve done a lift kit before. Full-day project. Watch the complete JT install walkthrough on our YouTube channel — most owners wrap it in a day. Any off-road shop can run it if you’d rather have it done.

Any non-wear component fails — we replace it. No mileage cap. No maintenance intervals to track. No fine print about voiding if you miss a service. Lifetime means lifetime.

Teraflex’s lifetime warranty voids if you miss a maintenance interval. MetalCloak’s actual parts warranty is 12 months — their “lifetime” language refers to their service program. No conditions here.

See It Installed

Install videos and build guides on our YouTube channel.

Watch more installs on YouTube
Google

Reviews from Google

See all on Google
5.0
★ ★ ★ ★ ★
132 reviews
5 ★
97%
4 ★
2%
3 ★
0%
2 ★
1%
1 ★
0%
JT
Jay Taylor May 27, 2025
★ ★ ★ ★ ★ Google
Had a worn out set of rear upper control arms on my TJ. These were old rubicon express long arms. can’t buy replacements and no one makes a direct fit replacement. Talked with Korby at core off road sent some measurements and photos and a week later new arms showed up. Packaging was perfect fit was perfect. Would highly recommend giving these guys a call.
P
Paul Mar 24, 2023
★ ★ ★ ★ ★ Google
I've been having trouble with the track bar (on my 2nd gen Dodge) since I installed the 3rd gen Synergy adapter bracket and a 3rd gen stock bar.. oddly, they call it a '3rd gen bracket' and the stock 3rd gen bar doesn't quite fit, making contact with the bracket. I had attempted to clearance the bracket but it was still making contact and I could feel it over large bumps. I reached out to a lot of companies, but Core 4x4 offered to make a custom bar for the application with adjustability and dual Johnny joints. The first pass on it didn't work but they sent me out another passenger side end that made it fit incredibly well. This was all done solely over email/descriptions/pictures/measurements. Bar is super high quality and heavy duty, made in the US by a family owned company and carries a lifetime warranty. The customer service was responsive and superb, and the price was a lot less than I expected.
CM
Craig MacIver May 27, 2025
★ ★ ★ ★ ★ Google
Got the CAMP version of adjustable control arms and track bars for our 03 TJ with a 3” lift and 33x10.5 KO 2’s. Super beefy bars, great fit and adjustability. Friendly advice and support from Korby at CORE 4X4. Good follow up as well. The ride quality is great as well as the handling. I think it all looks pretty good as well.
NP
Norb Pranger Oct 24, 2025
★ ★ ★ ★ ★ Google
Not sure where to start, Products or Service or Warranty. Products: I found Core4x4 through a very respected YouTuber in the Jeeping community. I purchased an entire set of Core4x4 Control Arms three years ago and have beat the daylights out of them and they are still in great condition. Now, I purchased another Jeep, this time for my daughter and bought yet another set of Control Arms because I know that these things can take a beating and stand up to it. I plan on replacing more parts on this TJ and my JL and will continue to buy from Core4x4. Service: This isn't some huge name conglomerate that treats you like you're just another customer. They are quick with responses and will always make things right should something be a problem. Oh and the quickness in which they ship their products is unmatched. I bought these CAs for my TJ on Thursday, I received them on Monday. Most other manufacturers will tell you weeks, they had them to me in 2 shipping days. Warranty: Seriously, a lifetime warranty? Yes please. Nothing more to say. I can't say enough about how great of a company this is. I've even spoken to the owner through email a few years back on some questions that I had. Support small American built businesses. P.S. Core 4x4, feel free to make me an ambassador and send me some swag :) .
PG
Paul Griffin Feb 21, 2026
★ ★ ★ ★ ★ Google
Great long arm kit with everything else I needed as well! They worked with me to ensure that I was getting an upgraded components kit just like I wanted. Fast shipping with some of the best packaging that I have ever seen. Nothing was scratched or missing and this kit is even more impressive than the videos or website can show. Powder coating looks great with no issues. I would highly recommend CORE 4x4 to anyone looking for a great quality kit.
AM
Adam M Sep 24, 2025
★ ★ ★ ★ ★ Google
First time buying from Korby @ Core 4x4 and it’s being nothing short of a great experience. I bought the non adjustable Trail kit for my 5th Gen Ram 1500 with a 2” lift. The welds look great, nice powder coat finish and quality bushing. Had some trouble fitting the grease nipples due to the powder coating but a thread tap would fix that. They fit easily and perform great. I felt the improvement straight away. No more wheel hop on hard acceleration which was my main reason for the purchase. I was missing some smaller bushings needed for the 5th Gen and Korby’s custom service was on point, with responsive emails and mailing out the missing parts straight away. Very happy with their products and customer service. Highly recommended company👌🏽
JH
Joe Hu Sep 24, 2025
★ ★ ★ ★ ★ Google
Amazing! I put all my new control arms and it drives a lot smoother and looks great!!!
EC
Eric Cox Jul 26, 2025
★ ★ ★ ★ ★ Google
Prompt, professional, and courteous service! Quality parts and broad assortment of products to suite your 4x4 needs:)
CT
Canon TeSelle Jun 26, 2025
★ ★ ★ ★ ★ Google
Great Experience. I wanted to make changes to my order and Korby was more than willing to work with me to get everything corrected. Hope to deal with these guys again in the future.
JI
Jerome Segura III Jun 26, 2025
★ ★ ★ ★ ★ Google
I bought the 16pc Cruise Series Adjustable Control Arm, Track Bar, Steering, End Link Kit to replace a worn budget 4" lift on my used JKU. These are top quality parts; very solid. Customer service is unsurpassed. They even matched prices on my order placed before the tax day sale. I made an error in ordering a drag link flip kit; they were quick to help me fix this too. There's peace of mind knowing these components are made in the USA. Thank you. 👍👍

Specifications

Color Black, Blue, Charcoal, Green, LightGreen, Orange, Purple, Red, White, Yellow, Custom Color - Other than what is listed above. Extra charge varies. We will reach out after order is placed.
Lift Size Stock Height, Lifted 1", Lifted 2", Lifted 3", Lifted 4", Lifted 5", Lifted 6", Lifted 7", Lifted 8", Custom length or 1/2 sizes (put desired length in the Order Notes)
Hardware No Hardware, Complete Kit
Drag Link Orientation Factory Mounting (under the knuckle), Drag Link Flip w/ Tapered Sleeve And Drill Bit (over the knuckle)
Stabilizer Clamp Standard Clamp, Hydraulic Assist Clamp
Vehicle Jeep Wrangler JL / JLU (18–Present)
Brand CORE 4X4
Series Crawl Series
Note to Core4x4: -
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