Made in USA
Orem, Utah
Lifetime Guarantee
Unconditional
10 Colors
In-house powder coat
Fully Adjustable
0-6" of lift
3 X-Series Options
Only Core 4x4
Front Lower Control Arm Hardware Kit Includes:
4 9/16” x 4.5” high grade bolts, 4 9/16” top lock nuts, 8 9/16” flat washers, 2 thick mounting spacers, 2 thin mounting spacers
Front Upper Control Arm Hardware Kit Includes:
4 10mm x 80mm high grade bolts, 4 10mm top lock nuts, 8 10mm flat washers
Rear Lower Control Arm Hardware Kit Includes:
4 9/16” x 4.5” high grade bolts, 4 9/16” top lock nuts, 8 9/16” flat washers, 2 thick mounting spacers, 2 thin mounting spacers
Front Track Bar Hardware Kit Includes:
1 high grade 2.75” bolt, 1 nut tab of chosen size, 1 flat washer
A-Arm Hardware Kit Includes:
1 9/16” x 4” high grade bolt, 2 9/16” flat washers, 1 9/16” nut, 2 ¾” to 12mm reducer sleeves, 2 12mm x 120mm high grade bolts, 2 12mm flat washers, 3 14mm x 40mm high grade bolts
| Axle Side Bolt Size (Front Track Bar) | Factory or 1/2 Inch or 9/16 Inch or 5/8 Inch |
Reviews of Core 4x4
5.0
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132 reviews
EA
Eric Ahonen
Mar 24, 2021
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Awesome control arms! My mechanic said “ your Jeep is pretty much bulletproof now.” And I just got the tier 1 arms! The people at the core 4x4 shop were really nice too. They were running behind on shipping, (which is understandable) so I decided to go pick it up because it was only an hour drive. They gave me a free $60 hardware kit for the inconvenience. Thanks core 4x4! You guys are awesome!!
JL
John Luna
Nov 23, 2025
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Great team, and help to support my jeep and provide best stuffs
JM
Jay Miller
Jul 26, 2025
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I purchased a upper and lower set of control arms from core 4x4 they came early then expected and seem to be very nice quality I ran into a complication installing them and emailed them my question I was expecting to get the response maybe the next day because it was after hours I got a response in about a few minutes which allowed me to finish the project that day I super appreciate that, the products are good strong lifetime warranty and their customer service is top notch
MN
Mike Nielsen
Nov 23, 2025
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The customer service is first class. I had an issue with a track bar I installed on my F350. I don’t have any other Core 4x4 parts yet, but with the way I was treated, I know their parts are well done, because they went above and beyond to make sure I was made whole. They wouldn’t be in business if they had to take care of a lot of people like they took care of me. Will definitely be back when it’s time to build the Jeep!
TG
Travis Grimm
Mar 23, 2024
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To start off if you're looking to upgrade your control arms definitely hit this company up. Great product, easy install of the product, with three different tiers everything is priced pretty good, I'm a sticker guy and they sent a sticker for each arm each track bar and also three extra ones so the extra are on the Jeep the advertise them for sure. If you're reading this review I highly recommend you to check their website out.
MS
Mr. Smith
Nov 23, 2025
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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!
8
89Patriot
Jan 22, 2026
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Great company! I have used there products consistently with no complaints with quality you can see and feel. From my experience, their customer service is also amazing. Core 4x4 has no issues standing behind their already amazing products and will quickly and professionally solve issues may they arise. I will continue to be a customer.
VK
Victor Keele
Sep 24, 2025
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Great customer service. I got my front upper and lower control arms and hardware on Friday afternoon. It didn’t come with instructions so I called Core 4X4 and they immediately e mailed me the instructions. Also, the kit I got had the spacers missing so I called. It was late Friday by thus time but they took care of the issue first thing Monday morning and I got the spacers on Tuesday. Great company.
GV
Gil Valk
Sep 24, 2025
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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!!!
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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Specifications
| Axle Side Bolt Size (Front Track Bar) | Factory, 1/2 Inch, 9/16 Inch, 5/8 Inch |
