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13pc Heavy-Duty Complete Adjustable Long Arm Upgrade Kit

Jeep Grand Cherokee ZJ 93-98 13pc Heavy-Duty Complete Adjustable Long Arm Upgrade Kit

1,784.96 1784.96 USD 2,099.95

2,099.95

Build Season · Save 15% — $315 off · ends Aug 28

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100% bolt-on no welding MADE IN USA · Orem, Utah Expert Support 100K+ Community
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13pc Heavy-Duty Complete Adjustable Long Arm Upgrade Kit

Jeep Grand Cherokee ZJ 93-98 13pc Heavy-Duty Complete Adjustable Long Arm Upgrade Kit
SKU: J-ZJ-C-LAK8
Pick your vehicle to confirm fit

1,784.96 1784.96 USD 2,099.95

2,099.95

Build Season · Save 15% — $315 off · ends Aug 28

More ways to pay ▾

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.
  • 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.
  • 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 Delivery date by ZIP
Order by 3:00 PM MT today — we'll start tomorrow
See full timeline
Core 4x4 Manufactured

Lifetime warranty on all non-wear items Made In USA

1–3 day build time + Shipping

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

Product Details

Transform Your ZJ’s Suspension for Maximum Off-Road Performance

The CORE 4X4 Crawl Series Long Arm Upgrade Kit is a complete suspension overhaul for the 1993-1998 Jeep Grand Cherokee ZJ, delivering unparalleled ride quality, strength, and off-road capability. By eliminating the factory short-arm suspension and replacing it with precision-engineered long arms and high-strength mounting brackets, this kit dramatically improves axle stability, suspension cycling, traction, and handling. With extended suspension geometry, this kit allows your axles to cycle on a longer arc, resulting in a smoother ride, improved articulation, and optimized stance.

Whether you’re daily driving, rock crawling, or desert racing, this bolt-on system provides the durability and control needed to tackle any terrain.

Key Features and Benefits

  • Optimized Suspension Travel Geometry – Extends control arm mounting points, allowing axles to move on a longer suspension arc for a smoother ride and better traction. Eliminates axle bind and short-arm limitations, allowing for increased suspension articulation. Reduces body roll and improves high-speed stability while maintaining low-speed crawling capability.
  • Heavy-Duty DOM Tubing Construction – 1.75” OD DOM tubing for lower arms and 1.5” OD DOM tubing for upper arms, providing extreme durability and impact resistance. Double-threaded left- and right-hand adjusters allow for on-vehicle fine-tuning without removal. (Front upper control arms are fixed due to the U-bracket design.)
  • Precision-Cut and Bent 1/4” Steel Brackets – Replaces factory short-arm mounting brackets with reinforced, heavy-duty weld-on brackets designed for maximum strength and long-term performance. Integrated body mount relocation on rear brackets, ensuring proper clearance for full suspension travel.
  • Full Suspension Overhaul for Maximum Performance – Eliminates factory suspension limitations, providing significantly better ride quality, handling, and stance. Improves axle centering, caster, and pinion angles, ensuring proper drivetrain geometry and reducing stress on suspension components. Designed for heavy off-road use, daily driving, and load-bearing applications, making it the ultimate upgrade for any ZJ build.

Durable Powder Coating for Long-Lasting Protection

To ensure maximum durability and corrosion resistance, each component undergoes a two-stage powder coating process. The zinc primer base coat provides superior protection against rust, while the durable top coat—available in 10 color options—adds an extra layer of resilience and customization to match your Jeep’s build. Brackets are left raw to ensure proper welding and post-installation finishing.

Proudly Made in the USA

At CORE 4X4, we manufacture our Long Arm Kits in Orem, UT, using high-quality American-sourced materials. Our commitment to strict quality control, rigorous testing, and precision engineering ensures every component is built to handle the toughest off-road conditions. By choosing CORE 4X4, you’re investing in American manufacturing and unmatched performance.

Final Thoughts

The CORE 4X4 Crawl Series Long Arm Upgrade Kit is the most significant suspension upgrade available for the Jeep Grand Cherokee ZJ. Eliminating the factory short-arm suspension, extending axle articulation, and reinforcing mounting points with heavy-duty brackets, this kit transforms your Jeep into an off-road powerhouse.

If you want better handling, a smoother ride, and the ability to push your suspension to the limit, this is the upgrade you’ve been waiting for. Upgrade your ZJ today and experience next-level suspension performance!


Make Model Submodel Years
Jeep Grand Cherokee 1993 - 1998

Construction & Materials

Jeep Grand Cherokee ZJ 93-98 6pc Crawl Series Heavy-Duty Rear Adjustable Long Arm Upgrade Kit

Rear 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. 

Rear Uppers built with 1.5” OD 5/16” Wall DOM. Forged Johnny Joints on both adjustable ends with 1” x 14 TPI - 2.32” long threads.

Jeep Grand Cherokee ZJ 93-98 7pc Crawl Series Heavy-Duty Front Adjustable Long Arm Upgrade Kit

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.
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, 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.

Google

Reviews of Core 4x4

See all on Google
4.8
161 reviews
5
97%
4
2%
3
0%
2
1%
1
0%
MM
Mike Martinez Aug 25, 2025
Google
Phenomenal company - very rare to come by in the automotive industry. Also very impressing. Let me start here. I got a set of yellow sway bar end links for my 19 ram DT (new body style) and let me tell you, I’m hooked. For numerous reasons. One the craftsmanship behind the product is unmatched for sure for without breaking the bank. 2ndly, they stand behind their product. Had a very minor issue and it was resolved in a blink of an eye!!! Insane. Just because of what i listed above i will forever spend my money with core 4x4! And i think you should too! I have no affiliation at all with this company besides being a consumer. I will be ordering my yellow UCAs and the rest of my rear suspension from them here shortly! Korby on the other hand. The representative that helped me went above and beyond FAST. I hung up the phone with him, and with in no lie 3 minutes he was calling back with an answer. GREAT GREAT GREAT customer service, Korby you and core 4x4 are what give us hope in the car community! With much love and great health to you all!!
Review photo 1
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Don Jul 26, 2025
Google
Great shop, great parts and great service. You want to buy off this company and company’s like this!!!! Wish we had more companies as good as this one!! Thank you
FS
Fernando Salazar Aug 25, 2025
Google
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!
LS
Leonard Smith Jan 22, 2026
Google
I don’t write reviews often, but Core 4x4 absolutely earned this one. I recently ordered leaf spring mounts and realized after the fact that I messed up my order. Totally my mistake. Instead of giving me the runaround or pointing at a return policy, Core 4x4 emailed me back and forth, worked through exactly what I was doing with my build, and made sure I ended up with the correct parts. That kind of customer service is rare these days — especially in the off-road world where a lot of companies stop caring once the order is placed. The parts themselves are exactly what you hope for: solid, well-made, confidence-inspiring hardware that looks like it belongs under a vehicle that actually gets used. You can tell these are designed by people who understand suspension geometry and real-world abuse, not just CAD screenshots. Mistakes happen — especially on custom or modified builds — and Core 4x4 handled mine like pros. Fast responses, clear communication, and a genuine effort to help me get it right. If you’re on the fence: don’t be. Core 4x4 is the kind of company you want backing your build — the kind that treats customers like fellow enthusiasts, not order numbers.
D
DSI Jul 26, 2025
Google
Great products with excellent customer service after the sale
L
luke Mar 24, 2021
Google
Excellent quality product and service. My l lower control arms broke and within the same day core 4x4 hooked me up with tier 2 arms and with the color I wanted. My Jeep rides better and has been solid for several months so far. 10/10 would recommend their products to anyone.
DR
David Rogers Aug 25, 2025
Google
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)
Review photo 1 Review photo 2
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caleb Mar 24, 2022
Google
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.
MH
Matthew Handy Sep 24, 2025
Google
Ran into an issue with a part that I ordered. Got ahold of them explained to them the issue I was having and they jumped in and got the issue fixed. Hands down the best customer service I have ever dealt with. The parts are hands down amazing. Highly recommend.
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
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