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1,026.33 1026.33 USD 1,207.45

1,207.45

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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

1,026.33 1026.33 USD 1,207.45

1,207.45

Starting at $110/mo or 0% APR with . See if you qualify

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.
MV
Mr. V Mar 24, 2021
Google
Good quality parts, much stronger than stock
EC
Eric Cox Jul 26, 2025
Google
Prompt, professional, and courteous service! Quality parts and broad assortment of products to suite your 4x4 needs:)
GV
Gil Valk Sep 24, 2025
Google
Excellent service, Prompt responses when needing technical assistance, Amazing looking parts that fit excellently. I would recommend them to anyone looking for suspension components. Also very well packaged when we received the shipment, which means no damage from shipping company!! We went with the Crawl Series double adjustable kit and it definitely looks killer on our build!!!
ST
Sal Torres May 27, 2025
Google
upper control arms look great and went on easy.. only reason I gave 4 stars and not 5 is because of a shipping issue which put my build a week behind. The issue was resolved quickly and painlessly, great customer service. Only time will tell how control arms perform but they look great and like they will go above and beyond control arm demand.
MS
Mr. Smith Nov 23, 2025
Google
Have yet to get to try them but I bought some upper, and then later , lower control arms for my 03 rubicon. The pricing is very fair, so fair I was hesitant to even purchase. When the product came in I was happily mistaken. These are some beefy units with an incredible warranty! I’m very excited! I went with the “Camp”series as I mostly daily it. I have trouble with the shipping at times when I ordered but Corby is quick to notice things and help communicate the solution. Looking forward to buying more parts!
TM
Tony Moller Aug 25, 2025
Google
Awesome parts! Support the older Jeeps! Great customer service.
GN
Glenn Nowosad Jan 22, 2026
Google
I just finished installing the Peak 2.0 Front Suspension system with the Core 4x4 Blue Tacoma Rear Suspension system on my 2024 TRD Offroad Premium Tacoma. The two upgraded suspension systems really made a difference in how the ride feels, whether we’re off-road or on the road. A big thank you to Korby and the team at Core 4x4 for their support and for getting the shipping sorted out so quickly!
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