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78.00 78.0 USD 78.00

78.00

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Built to order · Ships in 3–5 days

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https://jerdev.core4x4.com/web/image/product.template/27071/image_1920?unique=2d5d26f

Master Rebuild kit for CMP-J-JT-RL2

SKU: CMP-J-JT-RL2-MRK

78.00 78.0 USD 78.00

78.00

Not Available For Sale

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Lifetime warranty on all non-wear items United States

Not Sure Which X-Series? Compare All Three.

Same American steel. Same warranty. Same quality. Choose by how you drive.

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Tagline "Daily Confidence" "Weekend Ready" "Trail Domination"
Joint Type Polyurethane Bushings Johnny Joint (Single) Double Johnny Joint
Articulation ~30% ~65% ~95%
Tubing 1.625" OD / 3/16" Wall DOM 1.75" OD / 5/16" Wall DOM 1.75" OD / 5/16" Wall DOM
Price $72 $78 $84
Maintenance Zero Periodic grease Periodic grease
Best For Daily driver, light trails Weekend warrior, moderate off-road Hardcore builder, competition
Warranty Lifetime ✓ Lifetime ✓ Lifetime ✓
Made in USA Orem, Utah
Lifetime Guarantee Unconditional
10 Colors In-house powder coat
Ships in 3 Days From our UT facility
Fully Adjustable 0-6" of lift
3 X-Series Options Only Core 4x4

Why Builders Choose Core 4x4

The only aftermarket suspension brand with an X-Series product system

vs. MetalCloak

One price point, no tier options. Core 4x4 Crawl matches their performance at a better price with a better warranty.

vs. Teraflex

Skip a grease interval? Warranty voided. Core 4x4 Cruise requires zero maintenance — and our warranty covers everything.

vs. Clayton / Budget

Cheaper arms exist. But adjustable, American-made, 10 colors, lifetime guarantee, and an upgrade path? Only Core 4x4.

Everything you need to refresh your suspension.

This rebuild kit includes all the essential components needed to replace common wear items and restore performance.

CE-9110RK × 2

BSH-CB-2579 × 2

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.
JT
jacob trice Apr 27, 2025
Google
Core 4x4 has outstanding products at a fair price and unmatched customer service. When you call Korby, it's like talking with a friend. Very cool and helpul! I ordered some custom control arms, but from the wrong product line and they were super cool about returning them and upgrading to a better "Crawl" series. Only charged the difference between the two products. They paid all the return shipping and sent the uprgaded arms super quick. It was only a couple days. Awesome!! I couldn't be happier with the transaction👍🏼 Also, these control arms are stout and take a beating. I run heck out my Jeep in the rocks and desert. No problems whatsoever. Thanks Core 4x4, ya'll are welcome at my campfire anytime! Jake T. Pleasant Hill, Or.
AS
Anthony Snyder Jun 26, 2025
Google
Great experience and really great parts
RH
Roger Hooks Jun 26, 2025
Google
2018 Ram 2500 Rear Control Arms and Rear track Bar been running for about a year, Great Solid Products and great one on one customer service, same day response with issue resolved! Thanks Korby!
EG
Erica Grissom May 27, 2025
Google
First off, I wish I knew about them sooner. The customer service is top tier. The response time is about 30 min no waiting 1-3 days to get a response. The parts are heavy-duty and look amazing. The packaging is perfect, I can't wait to hit some trails. Thanks Core4x4
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.
BA
bryan angell Jun 26, 2025
Google
First off amazing products. I got a set of adjustable control arms for my XJ and it is so nice to be able to dial in caster and pinion angles. A quick call and I was able to purchase an adjustable track.
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
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