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SKU: CRS-J-JL-K12 ★★★★★ (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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$ 2,141.96 2141.96 USD $ 2,519.95

$ 2,519.95

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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/1685/image_1920?unique=a7bad1a
SKU: CRS-J-JL-K12
Fits: 2018 - Present Jeep Wrangler JL / JLU Add vehicle
Add Vehicle Google 5.0 ★★★★★ (132 reviews)

$ 2,141.96 2141.96 USD $ 2,519.95

$ 2,519.95

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.

Fix Wandering, Death Wobble, And Caster Deficiencies for Total Control

Take control of your Jeep Wrangler JL’s suspension and steering with the Cruise Series 12-Piece Kit, an all-in-one upgrade that corrects caster issues, eliminates wandering, prevents rut-following, and reduces death wobble. Designed as a complete suspension solution, this kit replaces every critical hard component—control arms, track bars, and steering—to restore precise handling, stability, and off-road capability. Whether you're driving on highways or tackling rough trails, this kit ensures your Jeep remains stable, centered, and responsive.

What’s Included in the Kit?

  • Cruise Series Front Upper Control Arms (CRS-J-JL-FU2)
  • Cruise Series Front Lower Control Arms (CRS-J-JL-FL2)
  • Cruise Series Rear Upper Control Arms (CRS-J-JL-RU2)
  • Cruise Series Rear Lower Control Arms (CRS-J-JL-RL2)
  • Cruise Series Front Track Bar (CRS-J-JL-FTB1)
  • Cruise Series Rear Track Bar (CRS-J-JL-RTB1)
  • 2.5-Ton Heavy Duty Aluminum Steering Kit (ST-J-JL-SK2)

This fully adjustable system works for lifts from 0 to 6 inches, ensuring that your suspension is dialed in for optimal alignment, axle positioning, and steering precision.

Key Features Benefits

  • Corrects Caster Eliminates Wandering – The adjustable front lower control arms restore proper caster, improving steering feel and straight-line stability, reducing wandering and rut-following.
  • Reduces Prevents Death Wobble – The adjustable front track bar and reinforced steering components keep the axle centered and stable, minimizing the risk of violent front-end oscillations.
  • Full Axle Alignment Re-Centering for 0-6” Lifts – Adjustable track bars and control arms allow for pinion angle correction, axle positioning, and alignment restoration, reducing driveline vibrations and premature suspension wear.
  • Heavy-Duty 2.5-Ton Steering System – Built from aircraft-grade aluminum, this reinforced steering kit eliminates factory tie rod flex, delivering stronger, more precise steering control.
  • Recommended Pairing for a Complete Suspension Solution – Pair with the ELS4 End Link Set for enhanced handling, stability, and long-term durability, ensuring a fully optimized suspension system.

How This Kit Solves Common Jeep JL Suspension Issues

The factory Jeep Wrangler JL suspension suffers from insufficient caster angle, which causes wandering, poor steering control, and excessive steering corrections. Lifting the Jeep only worsens these issues, making proper caster correction essential for stability. This 12-piece system completely resolves these issues by restoring caster angle, axle centering, and steering precision, ensuring a smooth, predictable driving experience on any terrain. Additionally, death wobble—caused by loose steering components, misaligned track bars, and improper suspension angles—is greatly reduced or eliminated with this reinforced track bar and steering kit combination.

Durable Two-Stage Powder Coating

Every component undergoes a two-stage powder coating process for maximum protection against rust and wear:

  • Zinc Primer Base Coat – Shields metal from corrosion and environmental damage.
  • Durable Top Coat – Available in 10 color options for added protection and customization.

Proudly Made in the USA

Manufactured in Orem, UT, this kit is 100% American-made, ensuring superior craftsmanship, rigorous quality control, and support for local industries.

Optional Hardware Upgrade

This kit reuses factory hardware, but if your Jeep has rusted or worn-out bolts, we offer optional Grade 8 hardware kits for a hassle-free installation.

In Conclusion

The Cruise Series 12-Piece Kit is the ultimate solution for Jeep JL owners seeking complete suspension and steering control. By correcting caster, re-centering axles, reinforcing steering, and eliminating death wobble, this kit transforms the way your Jeep handles both on and off the road. For those who want a complete lift kit, simply choose your own shocks and springs—this system provides the hard component foundation that outperforms anything else on the market. Upgrade today and drive with total confidence!

Notes: Some, (not all) factory axle mounts need to be "clearanced" to accept our larger bar. If needed, it is only a minor amount of trimming to be done. This applies to the front track bar only. Please see our Youtube channel for a video addressing this.

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 Cruise Series
Lift Size 0" — 6" or 6"+
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%
JJ
JT JT Dec 23, 2025
★ ★ ★ ★ ★ Google
We have all shopped places where the person on the phone makes you feel like they don't have the time to talk to you the customer or answer your questions. I can tell you first hand that's not Core 4x4. They have the best customer service I have seen so far. They have taken the time to respond to all of my questions in a very prompt and professional manner, taking the time to answer each and every question I have had. Lets put it this way if Core 4x4 sells a product I am wanting for my truck I will buy it from them, I highly recommend Core 4x4.
GH
Gary Haag Aug 25, 2025
★ ★ ★ ★ ★ Google
Ordered a set of Core 4x4 control arms for my 2006 Jeep TJ. These are some heavy duty quality control arms. Can't wait to get them installed. Great customer service too!
JL
John Luna Nov 23, 2025
★ ★ ★ ★ ★ Google
Great team, and help to support my jeep and provide best stuffs
JH
Joe Hu Sep 24, 2025
★ ★ ★ ★ ★ Google
Amazing! I put all my new control arms and it drives a lot smoother and looks great!!!
AS
Anthony Snyder Jun 26, 2025
★ ★ ★ ★ ★ Google
Great experience and really great parts
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👌🏽
BS
Bailey Smith Mar 23, 2025
★ ★ ★ ★ ★ Google
Core 4x4 excels with precision and service and keeps nothing else higher in mind. Everyone I've met at the company is very honest and down to earth, 10/10 would recommend.
DN
Devan Nelson Mar 25, 2019
★ ★ ★ ★ ★ Google
Had a great experience with Core 4x4, I desperately needed a custom track bar and found out just a couple days before Easter Jeep Safari. Spence was a huge help and made it happen with plenty of time to spare. Their parts are top notch!
PB
Peter Busack May 27, 2025
★ ★ ★ ★ ★ Google
Purchased a set of Trailing arms for my Ram 1500, quality is first class. I bought the ones with the Jonny Joints for more articulation and it appears from the construction I should get a lifetime of use, Zerk fittings are an added plus. Would defiantly recommend, and the the service team answered all of my questions.
DT
Dean Tk421 Feb 21, 2026
★ ★ ★ ★ ★ Google
I purchased the Jeep WJ control arms Camp series over a year ago. Very pleased and impressed. Easy installation and solid build. Bracket broke for rear upper control arm, they redesigned it to be more robust and sent me a new one with hardware, honoring their guarantee!

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 0" — 6", 6"+
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 Cruise Series
Note to Core4x4: -
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