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.
Conquer Any Terrain with CORE 4X4’s Crawl Series Lift Kit
Elevate your off-road experience with CORE 4X4’s Crawl Series Lift Kit, designed specifically for Jeep JL Wrangler models. Engineered for extreme off-roading, this kit empowers you to conquer the toughest trails with unmatched strength, precision, and durability.
What’s Included?
- Front and Rear Triple Rate Coil Springs
- (Optional) Front and Rear Shock Absorbers (matched to lift height)
- All 8 Crawl Series Adjustable Control Arms (Front and Rear)
- Front and Rear Crawl Series Track Bars
- Extended Brake Hoses
- Extended Front and Rear Bump Stops
- Raised Rear Track Bar Bracket
- Front and Rear Extended Sway Bar Endlinks
- Installation Hardware
Key Features Benefits
- 3.5" Lift for Extreme Off-Roading – Gain significant ground clearance to tackle rugged terrain and accommodate larger tires, ensuring you overcome obstacles with ease.
- Heavy-Duty Control Arms – All 8 Crawl Series adjustable control arms ensure maximum strength and precise suspension articulation, built to withstand extreme off-road conditions.
- Adjustable Track Bars – Front and rear Crawl Series track bars maintain optimal axle alignment, providing superior stability and control in aggressive off-road situations.
- Triple Rate Coil Springs – Delivers superior ride quality and improved suspension travel, adapting to varying terrains for enhanced comfort and control.
- High-Performance Shock Absorbers – Matched to the lift height, these shocks provide exceptional damping control, ensuring a smooth and controlled ride over rough terrain.
- Extended Brake Hoses – Accommodates increased suspension travel while ensuring consistent and reliable braking performance during extreme off-road use.
- Raised Rear Track Bar Bracket – Corrects roll center and enhances handling for improved suspension geometry and stability.
- Front and Rear Extended Sway Bar Endlinks – Enhances handling and stability, reducing body roll and improving control.
Durable Two-Stage Powder Coating
To ensure long-lasting durability and corrosion resistance, all steel components undergo a two-stage powder coating process. A zinc primer base coat provides rust protection, while a durable topcoat is available in 10 color options, allowing you to personalize your build.
Made in the USA
Proudly designed, engineered, and manufactured in Orem, UT, ensuring top-tier craftsmanship, strict quality control, and long-term reliability.
Tire Fitment
- Fits up to 37" tires with stock fenders.
Important Note
The CORE 4X4 Steering Kit add-on is over-the-knuckle and requires minor drilling for installation. Necessary hardware and a front track bar relocation bracket are included.
Conclusion
The CORE 4X4 Crawl Series Lift Kit is the ultimate suspension upgrade for Jeep JL Wrangler owners seeking maximum durability, off-road performance, and precise handling. Whether you're tackling extreme trails or upgrading for enhanced stability, this kit delivers superior articulation, control, and ride quality.
Upgrade today and experience the thrill of true off-roading with CORE 4X4!
| Make | Model | Submodel | Years |
|---|---|---|---|
| Jeep | Wrangler | 2018 - Present |
| Brand | CORE 4X4 |
| Vehicle | Jeep Wrangler JL / JLU (18–Present) |
| Color | Black or Blue or Charcoal or Green or Light Green 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. |
| Lift Kit Steering Upgrade Factory Location | No or Yes, include 2.5 ton steering upgrade. |
| Lift Kit Steering Stabilizer Clamp | Standard Clamp or Hydraulic Assist Clamp or Tie Rod Clamp for JL/JT - Fits Fox, Teraflex, And Standard Relocated Stabilizers That Bolt To The Tie Rod Instead Of The Rod End |
| Number of Doors | 2-Door or 4-Door |
| Shocks | Source My Own Shocks or Fox 2.0 Performance Series Shock Package or RockKrawler 2.25" RRD Shock Package |
| JL Engine Type | Gas or Diesel or 392 Hemi or 4XE |
| Series | Crawl Series |
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
Reviews from Google
5.0
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132 reviews
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bryan angell
Jun 26, 2025
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First off amazing products. I got a set of adjustable control arms for my XJ and it is so nice to be able to dial in caster and pinion angles. A quick call and I was able to purchase an adjustable track.
RH
Rex Hodges
Jun 26, 2025
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After ordering an upper and lower adjustable control arm kit manufactured by CORE 4X4 from a jeep parts distributor who's intials are E.T., they came with 3 of the threaded ends missing. After over 2 months of phone calls and emails to this E.T. company nothing was resolved. I finally decided to call CORE 4X4 myself and tell them my dilemma. I spoke with a very personable and professional gentleman named Korby, who is one of CORE 4X4's representatives, after a brief discussion of what I went thru he simply asked me for a picture and some measurements and the items I was missing and asked if I could cover ONLY the cost of shipping and I had my missing parts in exactly 1 weeks time. This company not only builds all it's parts in the U.S.A., they stand behind their products with great customer service and life time warranty. My experience with this company and their Rep Korby was fantastic. I would definitely recommend CORE 4X4 to anyone who needs parts for any 4x4 projects. You just can't beat their quality and service.
Rex Hodges
Valparaiso, Indiana
J
Justin
Mar 24, 2021
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Small business, family owned, made in the USA, lifetime warranty. Purchased Tier 3 control arms and rear track bar for a 2006 Jeep LJ. Simple website and easy to contact over phone and email. I had some technical questions and they were happy to answer them. They allow local pickup and were built to order same week. The order was wrapped and ready when I walked in and even gave a tour of the shop. They abrasive blast all raw materials to achieve a better surface profile for powdercoat to adhere and create a smooth, durable finish. I also noticed several CNC machines and a robotic welder they use for all their parts. A small outfit with a robotic welder? Their concern for quality is obvious and it shows in the parts they make. Very impressed. Happy to do business with these guys.
C
caleb
Mar 24, 2022
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Absolutely a great company. Ordered rear lower control arms with hardware but when i got it the hardware wasn't there but they sent it out right away and got a free t-shirt! Highly recommend.
RR
Ryan Rogers
Aug 25, 2025
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I purchased a set of the Cruiser Series control arms for my Jeep Jk based on postive reviews from different Jeep Facebook pages. Ordered and 2 days later realized they had the very same exact arms on sale in the overstock section. Called them up and they refunded me the savings from my original purchase. Amazing, honest service. Can't wait to get them installed. Keep up the good work guys.
JS
Jeffrey Shafer
Jan 22, 2026
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Exceptional customer service. All my questions were asked in a timely manner and parts were replaced when an error occured. I encourage people to make purchases due to their exceptional quality products, but also because of their customer service. Will make additional purchases in the future.
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89Patriot
Jan 22, 2026
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Great company! I have used there products consistently with no complaints with quality you can see and feel. From my experience, their customer service is also amazing. Core 4x4 has no issues standing behind their already amazing products and will quickly and professionally solve issues may they arise. I will continue to be a customer.
TM
Tony Moller
Aug 25, 2025
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Awesome parts! Support the older Jeeps! Great customer service.
MP
Mirko Pompili
Mar 19, 2026
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I want to share a truly positive experience.
I ordered a car kit consisting of two packages, but unfortunately one was lost during shipping with UPS. The situation could have become complicated... but it didn't.
The company manager was extremely helpful and professional: he personally followed up on the situation and did everything he could to resolve the issue, even sending me the package again without hesitation.
It's rare to find such attentive and reliable customer service these days.
My sincere congratulations on your professionalism and commitment: that makes all the difference.
NP
Norb Pranger
Oct 24, 2025
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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 :) .
Accessories & Add-ons
8pc Kit
Jeep Wrangler JL / JLU 18+ 8pc Crawl Series Adjustable Control Arm Kit
$ 1,585.45
10pc Kit
Jeep Wrangler JL / JLU 18+ 10pc Crawl Series Adjustable Control Arm, Track Bar Kit
$ 2,047.45
12pc Kit
Jeep Wrangler JL / JLU 18+ 12pc Crawl Series Adjustable Control Arm, Track Bar, Steering Kit
$ 3,202.45
16pc Kit
Jeep Wrangler JL / JLU 18+ 16pc Crawl Series Adjustable Control Arm, Track Bar, Steering, End Link Kit
$ 3,727.45
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Specifications
| Color | Black, Blue, Charcoal, Green, Light Green, 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 Kit Steering Upgrade Factory Location | No, Yes, include 2.5 ton steering upgrade. |
| Lift Kit Steering Stabilizer Clamp | Standard Clamp, Hydraulic Assist Clamp, Tie Rod Clamp for JL/JT - Fits Fox, Teraflex, And Standard Relocated Stabilizers That Bolt To The Tie Rod Instead Of The Rod End |
| Number of Doors | 2-Door, 4-Door |
| Shocks | Source My Own Shocks, Fox 2.0 Performance Series Shock Package, RockKrawler 2.25" RRD Shock Package |
| JL Engine Type | Gas, Diesel, 392 Hemi, 4XE |
| Brand | CORE 4X4 |
| Vehicle | Jeep Wrangler JL / JLU (18–Present) |
| Series | Crawl Series |
| Note to Core4x4: | - |
| Tags | |
|---|---|
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