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7pc Crawl Series Heavy-Duty Front Adjustable Long Arm Upgrade Kit

Jeep Grand Cherokee ZJ 93-98 7pc Crawl Series Heavy-Duty Front Adjustable Long Arm Upgrade Kit
Pick your vehicle to confirm fit

1,086.71 1086.71 USD 1,207.45

1,207.45

(Save 10%)

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Order today — ships within 1–3 business days
Enter ZIP for arrival estimate change
Order by 3:00 PM MT today — we'll start tomorrow
See full timeline
Lifetime warranty Fitment guarantee Ships from Orem, UT 4–8 hr install
COLOR 11 colors — pick yours
https://core4x4.com/web/image/product.template/3207/image_1920?unique=edc8f61

7pc Crawl Series Heavy-Duty Front Adjustable Long Arm Upgrade Kit

Jeep Grand Cherokee ZJ 93-98 7pc Crawl Series Heavy-Duty Front Adjustable Long Arm Upgrade Kit
SKU: CRL-ZJ-FLAK4
Pick your vehicle to confirm fit

1,086.71 1086.71 USD 1,207.45

1,207.45

(Save 10%)

COLOR 12 colors
Black Blue Charcoal Green LightGreen 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.

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.
  • Engine Type
  • Year/Crossmember Type
  • Lift Size
    Choose your current front lift height. Measure from center of wheel to fender if unsure.
  • Axle End Upper Joint Upgrade
  • Note to Core4x4:

Select Color to see price and add to cart.

Order today — ships within 1–3 business days
Enter ZIP for arrival estimate change
Order by 3:00 PM MT today — we'll start tomorrow
See full timeline

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
Fully Adjustable 0-6" of lift
3 X-Series Options Only Core 4x4

Unmatched Off-Road Performance On-Road Comfort

Upgrade your Jeep Grand Cherokee ZJ with the Crawl Series Front Long Arm Upgrade Kit, engineered for superior suspension articulation, axle stability, and overall ride quality. Whether you're tackling rocky trails, high-speed desert runs, or daily driving, this long arm kit is designed to handle it all. With extended control arms, this kit optimizes suspension geometry for a smoother ride and better traction, even in extreme off-road conditions.

Key Features and Benefits

  • Heavy-Duty Construction – Built from 5/16” wall DOM tubing, these long arms provide superior durability and articulation over factory and short-arm setups.
  • Optimized Suspension Geometry – The longer control arms cycle on a longer arc, improving axle movement, reducing stress on suspension components, and enhancing ride quality.
  • Precision-Engineered Brackets – 1/4” laser-cut and precision-bent steel brackets ensure a perfect fit and unmatched strength.
  • Increased Ground Clearance Travel – Unique upper control arm bends allow for maximum up-and-down travel without body modifications.
  • Full Bolt-On Installation – No welding required—bolt-on design makes installation straightforward with included hardware.

Two-Stage Powder Coating for Maximum Protection

Every component in this kit undergoes a two-stage powder coating process for enhanced durability and corrosion resistance. Zinc primer base coat prevents rust and protects against harsh environmental conditions. Durable top coat available in 10 custom colors for added protection and personalization. Custom colors available upon request.

Proudly Made in the USA

Manufactured in Orem, UT, the Crawl Series Front Long Arm Upgrade Kit is built to the highest standards of American craftsmanship. By choosing CORE 4X4, you’re investing in high-quality, American-made products designed to withstand the most demanding conditions.

Optional Hardware Upgrade

Designed for easy installation using factory hardware. For those dealing with rusted or stubborn bolts, optional Grade 8 hardware kits are available separately for a hassle-free setup.


  • Vehicle Fitment: Jeep Grand Cherokee ZJ 93-98 – Upgrades your front suspension with a true 4-link long-arm design, delivering unmatched articulation, down travel, and ride quality for both on- and off-road performance.

  • CORE Advantage: Unlike radius arm designs that limit articulation and create bind, this true 4-link system allows each wheel to move independently, increasing suspension travel and maintaining stability across uneven terrain.

  • Adjustability: Extended arm geometry corrects axle positioning, optimizes caster and pinion angle, and reduces driveline vibrations—resulting in smoother handling and enhanced suspension efficiency.

  • Construction: Built from heavy-duty 5/16” wall DOM tubing, reinforced with 1/4” laser-cut plate steel brackets for maximum strength, ensuring durability in extreme conditions.

  • 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.

Built With

Front Lowers Built With 1.75” OD 5/16” Wall DOM. Forged Johnny Joints on both adjustable ends with 1.25” x 12 TPI - 2.625” long threads.

Front Uppers Built With 1.5” OD 5/16” Wall DOM. Welded u-bracket on the welded end and a Forged Johnny Joints on the adjustable end with 1” x 14” TPI - 2.32” long threads.

Make Model Submodel Years
Jeep Grand Cherokee 1993 - 1998

Construction & Materials

Front Lowers Built With 1.75” OD 5/16” Wall DOM. Forged Johnny Joints on both adjustable ends with 1.25” x 12 TPI - 2.625” long threads.

Front Uppers Built With 1.5” OD 5/16” Wall DOM. Welded u-bracket on the welded end and a Forged Johnny Joints on the adjustable end with 1” x 14” TPI - 2.32” long threads.

Vehicle Jeep Grand Cherokee ZJ (93–98)
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.
Series Crawl Series
Engine Type 5.9 L V8 or 5.2 L V8 or 4.0 L I6
Year/Crossmember Type 93-95 (2-Bolt Transmission Mount) or 96-98 (4-Bolt Transmission Mount)
Lift Size 0" — 6" or 6"+
Axle End Upper Joint Upgrade No-Maintain factory mounting point or Yes-Include Johnny Joint Upgrade (CE-9102K1)
Placement on Vehicle Front Upper, Front Lower, Front
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.

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Reviews of Core 4x4

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5.0
132 reviews
5
97%
4
2%
3
0%
2
1%
1
0%
DS
Dana Smith Jul 26, 2025
Google
Excellent, strong, and durable products—perfect for both on-road and off-road applications. The customer service is outstanding—friendly, knowledgeable, and extremely helpful with understanding installation and ensuring I got exactly what I needed. I would definitely order again. Top-notch company with high-quality products made right here in the U.S.A.
Review photo 1 Review photo 2 Review photo 3
J
Justin Mar 24, 2021
Google
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.
Review photo 1
MT
Ma TheMeatLoaf Mar 23, 2024
Google
Their website estimated 2 days to get my parts but actually took 11. No communication to let me know what’s going on. Parts were missing. Some days they answer questions, some they don’t. Didn’t let me know I’d have to alter stock bolts to fit their parts. All around just seems like they don’t care.
HK
Harold Kruder Mar 23, 2024
Google
I needed some parts and had to replace 1 lower control arm and their customer service is great. Helped with answering my questions and got parts shipped quickly.
JS
Jeffrey Shafer Jan 22, 2026
Google
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.
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.
D
Danny Oct 24, 2025
Google
Outstanding customer service to match the high quality parts. This is the go-to company.
EL
Eric Labrum May 27, 2025
Google
Best customer service I have ever experienced. They are my go to source do to quality and service
RH
R and H H Oct 24, 2025
Google
Top notch company. Mechanic lost bolts that clamp upper control arms. Korby sent out spare bolts no charge. Best customer service I’ve come across in a long time. Only suspension brand I’ll ever use.
DA
Dastrup Auto Mar 25, 2019
Google
I have bought a bunch of sets of arms, track bars and even had custom work done by Core 4x4. Just yesterday, Spence and Cam delivered an awesome cross member they designed and built for me! All of their products have been exceptional! I have personally seen their progression with design changes/updates. They truly take pride in their work and products. Quality control is second to none! They’ve also helped me diagnose issues with different jeeps I’ve had, as well as Dodge/Rams. These guys know their stuff! Really! I trust them whole heartedly and absolutely love their products/quality of work! I’ve referred many people, and will always continue to do so. Keep up the good work Core4x4!

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.
Engine Type 5.9 L V8, 5.2 L V8, 4.0 L I6
Year/Crossmember Type 93-95 (2-Bolt Transmission Mount), 96-98 (4-Bolt Transmission Mount)
Lift Size 0" — 6", 6"+
Axle End Upper Joint Upgrade No-Maintain factory mounting point, Yes-Include Johnny Joint Upgrade (CE-9102K1)
Vehicle Jeep Grand Cherokee ZJ (93–98)
Brand CORE 4X4
Series Crawl Series
Note to Core4x4: -
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