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965.96 965.96 USD 1,207.45

1,207.45

1–3 day build time + Shipping

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Jeep Comanche MJ 86-92 7pc Crawl Series Heavy-Duty Adjustable Long Arm Upgrade Kit

SKU: CRL-J-MJ-LAK1
Fits: 1986 - 1992 Jeep Comanche MJ Add vehicle

965.96 965.96 USD 1,207.45

1,207.45

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.
  • Long Arm Kit Front Track Bar Add-On
  • Axle End Upper Joint Upgrade
  • Note to Core4x4:

Select Color to see price and add to cart.

4–8 hr install Moderate Alignment recommended Lifetime warranty on all non-wear items Made In USA

Superior Suspension Performance for Your Jeep Comanche MJ

Upgrade your Jeep Comanche MJ with the Crawl Series Long Arm Upgrade Kit, designed to enhance axle stability, optimize suspension geometry, and improve overall ride quality. Unlike radius-style long arms that create single points of failure, this long arm design features both long lower and upper control arms, delivering superior strength, stability, and articulation for on-road comfort and off-road performance.

What's Included?

  • Long Lower Control Arms (2)
  • Long Upper Control Arms (2)
  • 1/4-Inch Plate Steel Brackets and Crossmember
  • 3-Piece High-Clearance Crossmember for Drivetrain Access

Key Features and Benefits

  • Long Arm Design – Maximizes suspension travel, improves ride quality, and eliminates the binding issues of short arms.
  • Heavy-Duty Construction – Built with .313-inch wall DOM tubing for superior strength and durability in extreme conditions.
  • High-Clearance Crossmember – Designed for improved ground clearance and obstacle navigation.
  • Adjustable for Various Lift Heights – Works with lifts from 2 inches and up, making it a perfect low center of gravity (LCG) option for better stability.
  • 100% Bolt-On Installation – Includes weld surfaces for those seeking additional reinforcement.

Built for Strength and Performance

The Crawl Series Long Arm Upgrade Kit is engineered for maximum articulation and control. With long upper and lower control arms, your Jeep’s suspension cycles on a longer arc, allowing for smoother and more predictable handling. This reduces driveline strain and provides better overall ride quality, whether on technical rock crawls or daily commutes.

Optional Axle Side Upper Bushing Upgrade

While factory bushings offer adequate performance, they can wear prematurely under extreme conditions. We offer two upgrade options:

  • Polyurethane Replacement Bushings – Provides increased durability and longevity.
  • Rock Jock Axle Side Johnny Joint Upgrade Kit – Replaces factory rubber with Johnny Joints for the best articulation and longevity (cutting and welding required for installation).

Two-Stage Powder Coating for Maximum Durability

Every component in this kit undergoes a dual-layer powder coating process for superior protection.

Zinc Primer Base Coat – Provides corrosion resistance to prevent rust.

Durable Top Coat – Available in 10 color options to customize your Jeep’s suspension.

Made in the USA

Proudly manufactured in Orem, UT, the Crawl Series Long Arm Upgrade Kit is built to the highest American craftsmanship standards. By sourcing local materials and maintaining strict quality control, we ensure a premium product that delivers unmatched durability and performance.

In Conclusion

The Crawl Series Long Arm Upgrade Kit is the ultimate suspension solution for Jeep Comanche MJ owners looking to enhance stability, ride quality, and off-road capability. With its long arm design, premium materials, and industry-leading durability, this kit is built to handle everything from daily driving to extreme trail adventures. Upgrade today and experience superior control, articulation, and performance on every terrain!


Make Model Submodel Years
Jeep Comanche 1986 - 1992

Each rebuild kit includes all necessary components to replace and restore wearable parts.

Vehicle Jeep Comanche MJ (86–92)
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 Crawl Series
Lift Size 0" — 6" or 6"+
Long Arm Kit Front Track Bar Add-On No or Yes, include optional Track Bar
Axle End Upper Joint Upgrade No-Maintain factory mounting point or Yes-Include Johnny Joint Upgrade (CE-9102K1)

See It Installed

Install videos and build guides on our YouTube channel.

Watch more installs on YouTube
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Reviews from Google

See all on Google
5.0
132 reviews
5
97%
4
2%
3
0%
2
1%
1
0%
AP
Ajay Paynter Mar 4, 2026
Google
Great company, who worked with me on shipping parts to arrive in time for a show. When I explained my concern they went above and beyond to make it happen. Quality of the parts is top notch.
RC
Ryan Colligan Mar 4, 2026
Google
I have nothing but good things to say about Core 4x4. I have the crawler series on my JKU and we take it all over the place. These parts handle everything we throw at them.
MT
Marcus Torres Jan 15, 2026
Google
Best control arms I have installed on any of my builds. After running every major manufacturer, Core 4x4 is on par or better than all the high-end companies at a fraction of the cost. Lifetime warranty is the cherry on top.
JO
Jaime Overmyer Nov 23, 2025
Google
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!
E(
Eric Hernandez (savagefit) May 27, 2025
Google
The whole process was quick and painless. The products are top tier and when I reached out them for package update info, Korby Linscomb was very responsive, and got me the answers I needed the same day. Even when I emailed back to some additional info, he sent what I was looking for that same day. I love core 4x4 and will be giving them my business from now on.
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)
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.
NM
Noah Myers Mar 23, 2024
Google
I contacted these guys on a Saturday through email and needed some control arms by the following weekend, Spence got back with me and told me he would make sure the order got shipped out on Monday, they got busy and wasn’t able to ship the package out so he got back with me that evening and upgraded my shipping for free and shipped out the next day, only because he told me he’d make sure I’d have them by the weekend! This company sticks to their word! The customer service from these guys are unmatched and they will have another lifetime customer here!
AH
Abbey Hiett Mar 25, 2019
Google
Company finally made things right
DW
Darin Wuebbels May 27, 2025
Google
Thanks for the fabulous customer service. Your products and customer service are first class. I highly recommend these guys. Excellent experience.
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