Bracket Hardware Kit Includes:
4 high grade ½” x 7” bolts, 8 ½” small washers, 2 ½” nuts, 2 high grade 9/16” x 7” bolts, 2 high grade 9/16” x 4.5” bolts, 8 9/16” washers, 4 9/16” nuts, 4 high grade ⅝” x 4.5” bolts, 4 ⅝” big washers, 4 ⅝” small washers, 4 ⅝” nuts
2003-2009 Control Arm Hardware (Axle-Side Only):
2 high grade 9/16” x 4” bolts, 4 9/16” washers, 2 9/16” nuts, 2 high grade ⅝” x 4.5” bolts, 4 ⅝” washers, 4 ⅝” cam bolt delete washers, 2 ⅝” nuts
2010+ Control Arm Hardware (Axle-Side Only):
2 high grade 9/16” x 4” bolts, 4 9/16” washers, 2 9/16” nuts, 2 high grade 18mm bolts, 4 18mm washers, 4 18mm cam bolt delete washers, 2 18mm nuts
See It Installed
Install videos and build guides on our YouTube channel.
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Reviews from Google
5.0
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132 reviews
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Ajay Paynter
Mar 4, 2026
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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
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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
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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.
DW
Derek Whitfield
Nov 20, 2025
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Solid product, the lifetime warranty sealed the deal for me. Installed on my TJ and the ride quality improved noticeably. Shipping took a bit longer than expected but the parts were worth the wait.
SH
Shawn Hooten
Apr 27, 2025
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Great products, shipped the next day during a big sale event. Core 4x4 gets it right and gets it done! Thank you all.
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Sebastian
Oct 24, 2025
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Great products they sell, got a crawl series long arm kit for my xj and it has held up quite nice, they are beefy, and for what ever reason they fail it has a great warranty with a customer service to match, when someone asks what control arm kit to buy I always recommend core 4x4
PB
Peter Busack
May 27, 2025
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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.
EG
Erica Grissom
May 27, 2025
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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
MH
Matthew Handy
Sep 24, 2025
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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.
MT
Ma TheMeatLoaf
Mar 23, 2024
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Their website estimated 2 days to get my parts but actually took 11. No communication to let me know what’s going on. Parts were missing. Some days they answer questions, some they don’t. Didn’t let me know I’d have to alter stock bolts to fit their parts.
All around just seems like they don’t care.
