Jeep Wrangler JK/JKU Wrangler JK/JKU Crawl Series Lift Kit

Name: Jeep Wrangler JK / JKU 07-18 Crawl Series 3.5" Lift Kit
Brand: CORE 4X4
SKU: CRL-J-JK-LK
Price: 3674.95 USD
Availability: InStock

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SKU: CRL-J-JK-LK ★★★★★ (132 reviews)

$ 3,307.46 3307.46 USD $ 3,674.95

$ 3,674.95

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Salt Lake City, UT change

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Lifetime warranty Fitment guarantee Ships from Orem, UT 4–8 hr install

Jeep Wrangler JK / JKU 07-18 Crawl Series 3.5" Lift Kit

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COLOR 11 colors — pick yours

	Daily Confidence $713	Trail-Ready $2,231	Trail Domination $3,307
Articulation	30°	65°	95°
Joint Type	Flex Polyurethane	Forged Johnny Joint	Forged Johnny Joint
Tubing	1.875" OD lowers / 1.625" OD uppers · 3/16" wall DOM	1.75" OD lowers / 1.50" OD uppers · 5/16" wall DOM	1.75" OD lowers / 1.50" OD uppers · 5/16" wall DOM
Maintenance	Periodic greasing	Periodic greasing	Periodic greasing
Warranty	Lifetime	Lifetime	Lifetime
	SELECT CRUISE →	SELECT CAMP →	SELECT CRAWL →

Made in USA Orem, Utah

Lifetime Guarantee Unconditional

10 Colors In-house powder coat

Fully Adjustable 0-6" of lift

3 X-Series Options Only Core 4x4

Conquer Any Terrain with the Crawl Series Lift Kit

Transform your Jeep JK Wrangler into the ultimate off-road machine with Core4x4’s Crawl Series Lift Kit. Designed for extreme off-roading, this comprehensive kit delivers unparalleled strength, precision, and durability to tackle even the most challenging trails with ease.

Key Features Benefits

3.5" Lift for Extreme Off-Roading – Gain significant ground clearance to accommodate larger tires and navigate rugged terrain with ease.
Heavy-Duty Adjustable Control Arms – Includes all 8 Crawl Series adjustable control arms, providing maximum durability and precise suspension articulation.
Adjustable Front and Rear Track Bars – Ensures optimal axle alignment and stability, improving handling during extreme off-road conditions.
Triple Rate Coil Springs – Designed for unmatched comfort, stability, and superior ride quality across all terrains.
High-Performance Shock Absorbers – Specifically matched to the lift height for enhanced damping control, ensuring a smooth, controlled ride.
Extended Brake Hoses – Accommodates increased suspension travel while maintaining reliable braking performance.
Extended Sway Bar End Links – Improves handling and stability, ensuring better control on and off the trail.
Extended Bump Stops Raised Rear Track Bar Bracket – Protects suspension components during extreme compression and improves roll center for enhanced stability.

Two-Stage Powder Coating for Maximum Protection

All components undergo a two-stage powder coating process for superior durability and corrosion resistance. A zinc primer base coat provides rust protection, while a durable topcoat is available in 10 color options to match your build.

Made in the USA

Proudly designed, engineered, and manufactured in Orem, UT, ensuring superior craftsmanship, strict quality control, and long-term reliability.

Complete Hardware Included

This kit comes with all necessary installation hardware, eliminating the need for additional purchases.

Conclusion

The CORE 4X4 Crawl Series Lift Kit (CMP-JK-LK3.5-CRL) is the ultimate suspension upgrade for Jeep JK Wrangler owners who demand extreme off-road performance, durability, and articulation. Upgrade today and experience next-level control, stability, and ride quality on the toughest trails!

Important Notes:

When using this lift kit with a factory front driveshaft, contact between the driveshaft and exhaust is inevitable-leading to failure of the factory driveline. Exhaust spacers can prolong the life of the factory shaft, but we recommend upgrading to an aftermarket driveshaft to permanently fix this issue.

Vehicle Fitment: Jeep Wrangler JK 07-18 – Delivers a complete 3.5” suspension lift for enhanced ground clearance, handling, and off-road performance.
CORE Advantage: Transforms your Jeep with superior articulation, stability, and ride quality, allowing you to conquer rugged trails while maintaining smooth on-road comfort.
Adjustability: Fully adjustable control arms and track bars optimize axle alignment, caster correction, and suspension geometry for extreme off-road capability.
Construction: Built with heavy-duty DOM tubing, premium shocks, and triple-rate coil springs, all powder-coated for durability, articulation, and a smooth ride.
Two-Stage Powder Coating: Zinc primer base and top coat available in 10 vibrant colors protect against corrosion and allow for personalized styling of your rig.
Warranty and Origin: Proudly manufactured in the United States, our product includes a lifetime warranty on all non-wear items, providing you with confidence and peace of mind in your purchase.

Make	Model	Submodel	Years
Jeep	Wrangler		2007 - 2018

Vehicle	Jeep Wrangler JK / JKU (07–18)
Brand	CORE 4X4
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	No or Yes, include 2.5 ton steering upgrade with included front track bar bracket and flipped drag link.
Lift Kit Steering Stabilizer Clamp	Standard Clamp or Hydraulic Assist Clamp
JK Long Arm Upgrade for Lift Kit	No thanks-stick with short arms. or Yes, upgrade to long arms for full width front axle (straight aluminum lowers) or Yes, upgrade to long arms for factory width front axle (bent steel lowers)
Shocks	Source My Own Shocks or Fox 2.0 Performance Series Shock Package or RockKrawler 2.25" RRD Shock Package
Number of Doors	2-Door or 4-Door
Series	Crawl Series
Placement on Vehicle	Front Upper, Front Lower, Rear Upper, Rear Lower, Front, Rear
Mounting Style	Bolt-On

Use the vehicle selector on our website to shop by your year, make, and model. On product pages, use the kit builder to select your color, series, lift height, and any add-on options, then add to cart. If you need help, call or email our team.

Standard orders typically ship within 1–3 business days of ordering. Custom color orders take approximately 5–10 business days. Because everything is built in-house, we can turn orders quickly even for custom specifications.

You can reach our team through the contact form on our website, or browse to the Contact Us page. Our team is available to answer pre-sale and technical questions before and after your purchase.

Reviews of Core 4x4

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5.0

★ ★ ★ ★ ★

132 reviews

5 ★

97%

4 ★

3 ★

2 ★

1 ★

Jay Miller Jul 26, 2025

★ ★ ★ ★ ★

I purchased a upper and lower set of control arms from core 4x4 they came early then expected and seem to be very nice quality I ran into a complication installing them and emailed them my question I was expecting to get the response maybe the next day because it was after hours I got a response in about a few minutes which allowed me to finish the project that day I super appreciate that, the products are good strong lifetime warranty and their customer service is top notch

Jaime Overmyer Nov 23, 2025

★ ★ ★ ★ ★

Korby was extremely helpful in helping me find the right part for my truck. He was kind, knowledgeable, and patient while I asked a million questions. He also went out of his way to find the right shipping option for me since it’s tricky where I live. I’m looking forward to getting the parts so I can fix my truck and go adventuring again soon!

Norb Pranger Oct 24, 2025

★ ★ ★ ★ ★

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 :) .

Fernando Salazar Aug 25, 2025

★ ★ ★ ★ ★

Great quality control arms and great customer service. Korby has been a great help at answering my questions on some issues I’ve been having with installation!

R2d2 Movi78 Feb 21, 2026

★ ★ ★ ★ ★

I’m extremely impressed with Core 4x4. The quality of their parts is outstanding — everything feels solid, well‑built, and engineered with real attention to detail. Shipping was fast and everything arrived perfectly packaged. Their customer service is just as good as their products: responsive, helpful, and genuinely committed to making sure you get exactly what you need. Overall, a top‑tier experience. I’ll definitely be buying from them again. Specially thank you Mr. Linscomb from Core 4x4. Arturo M.

Aaron Mar 23, 2024

★ ★ ★ ★ ★

I have recently come to know Core 4x4 when I purchased a Jeep XJ and was looking for a place that had dedicated XJ suspension and components. Here is what makes them different than most other shops. All of their components are top shelf quality and they back it up if you break any of it. I was able to see their shop when I picked up an order locally and was impressed with their attention to detail and how they assemble and powder coat each part. I had an issue with a shackle and needed the threaded shaft to be shorter. I called in and talked to Kaden and he told me to come by and they would shorten it for me. When I got there, Kaden and Spencer (the owner) met me and talked about options and proceeded to make the right adjustments to fit my XJ. Told me if anything changes in the future and I need additional length, they would take care of me. So what really sets them apart from others is their Customer Service. Try calling in to any other Jeep suspension or part shop and see how they treat you. Been there - done that. Will continue to do business with Core and their team. Getting that kind of service for just a shackle has me thinking I may need to replace my JT components with Core's. Thanks Guys for being helpful good humans!

David Rogers Aug 25, 2025

★ ★ ★ ★ ★

Ive had the front adjustable control arm kit in bright green for my 1996 ZJ. Ive had the kit for about a year now and i have to say, im extremely impressed, over 1000 miles off-road and roughly 20,000 miles on the highway. These control arm kits for any vehicle built by core 4x4 are well worth the money, just be aware thereight be some minor scatches or chips from shipping ( but who should care about that if you're beating the crap out of em' they way they were built and designed for)

Peter Busack May 27, 2025

★ ★ ★ ★ ★

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.

Jay Taylor May 27, 2025

★ ★ ★ ★ ★

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.

David Nov 23, 2025

★ ★ ★ ★ ★

First of I just want to say Great customer service korby Has helped me from the start and has not let me down! Reached out to him again today and he was able to warranty some parts out for me. As far as the quality of the parts.. excellent! The build quality is great. I can definitely tell a Difference from the cheap oem rear control arms to these and the pan hard bar. Color, From what I can tell it’s super durable been through a few mud holes on top of the daily road grime and after a quick wipe they still pop! Overall I recommend. Customer service is everything for me and it’s definitely there at Core 4x4.

Accessories & Add-ons

Steering Stabilizer

FOX 2.0 IFP Stabilizer Jeep Wrangler JK

$ 229.95

8pc Kit

Jeep Wrangler JK / JKU 07-18 8pc Crawl Series Adjustable Control Arm Kit

$ 1,574.95

10pc Kit

Jeep Wrangler JK / JKU 07-18 10pc Crawl Series Adjustable Control Arm, Track Bar Kit

$ 1,994.95

12pc Kit

Jeep Wrangler JK / JKU 07-18 12pc Crawl Series Adjustable Control Arm, Track Bar, Steering Kit

$ 3,097.45

16pc Kit

Jeep Wrangler JK / JKU 07-18 16pc Crawl Series Adjustable Control Arm, Track Bar, Steering, End Link Kit

$ 3,622.45