Jeep Comanche MJ Crawl Series Long Arm Upgrade Kit 

The Core 4×4 Crawl Series Long Arm Upgrade Kit for the Jeep Comanche MJ is the next big upgrade after lifting your jeep. When we set out to make this kit we wanted to get away from the radius style long arms that have flooded the market. Not only are they a bit of an eye sore, but having single points of failure holding your axle forward, just never sat well with us. So we decided to make a kit with true long lower AND upper control arms. This is what really sets this kit apart. With the true long arm design you gain strength, stability, and higher ground clearance. The upper control arms tuck nicely inside the frame rail allowing more room for up travel at lower lift ranges, increased range of motion for your suspension travel, and peace of mind when you are out on the trails!

Why do a Long Arm Crawl Series Kit?

First and foremost: Performance and ride quality. Longer arms means your suspension cycles on a longer arch giving your axle a smoother more consistent range of motion. Proper suspension cycling is what gives the best ride quality on and off the road, as well as flexibility when and where you need it. When you lift your jeep on ‘short’ arms the increased angle that they ride at can bind and limit your suspension cycle. A true long arm kit relocates your control arm mounts away from your axle, allowing for longer arms and proper suspension travel.

Next: Stability. Whether your jeep is a daily driver, a rock crawling weekend warrior or a little of both, long arm kits correct suspension geometry and help keep your wheels on the ground. A long arm kit is one of the best upgrades you can do when you lift your jeep to give you on and off road stability.

Last of all: Core 4×4’s quality can’t be beat.  We are very careful to only select the highest grade bushings, steel, and components in our products because we know that quality is important when you rely on our parts for your ride. Our MJ Long Arm Kit is no different. Whether it’s for daily driving use, more aggressive off roading, heavy towing, or even desert racing this kit will stand up to the test and give you the ride quality and performance that our customers have come to expect from our products!

Design Features

• 100% Bolt on with surface area to weld if desired
• 3-piece Crossmember for simple drivetrain access
• True long arm design 
• 1/4 inch plate steel on brackets and crossmember
• High clearance crossmember design
• 5/16 inch wall DOM Tubing

Kit Highlights

• Can be installed at as little as 2 inches of lift (great LCG option)
• Made in the USA
• Lifetime Warranty
• True long lower AND upper control arms

Optional Upgrade for axle side upper bushings

Now, the factory bushings will not limit your flexibility much with this kit, but they can fail prematurely by twisting up and on a regular basis. We offer a polyurethane replacement as an option, or select the Rock Jock Axle Side Johnny Joint Upgrade Kit to replace your factory rubber with Johnny Joints! This upgrade gives you the absolute best flexibility and durability from your axle side upper control arm mount *cutting and welding are required for this option*

Cruise, Camp or Crawl?

Our Crawl Series is our most capable parts series yet! Giving you everything our Camp Series offers and more! Featuring the thickest tube wall and most flexibility this series is great for extreme off-roading and can take anything you can throw at it. With the tried and true Johnny Joint ™ at both ends this series will out flex any coil sprung suspension setup and hold up to any rock you can land your jeep on. Whether you are cruising the town, on a weekend camping trip, or crawling the hardest trails this series can do it all!