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” high grade bolts, 4 9/16” top lock nuts, 8 9/16” flat washers
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” high grade bolts, 4 9/16” top lock nuts, 8 9/16” flat washers
Rear Upper Control Arm Hardware Kit Includes:
4 10mm x 80mm high grade bolts, 4 10mm top lock nuts, 8 10mm flat washers
Front Track Bar Hardware Kit Includes:
Axle Side Hardware: 1 high grade bolt of chosen size, 1 nut tab of chosen size, 1 flat washer of chosen size
Frame Side Hardware: 1 5/8” x 4.5” high grade bolt, 1 5/8” top lock nut, 2 5/8” flat washers
Rear Track Bar Hardware Kit Includes:
2 10mm x 75mm high grade bolts, 2 10mm top lock nuts, 4 10mm flat washers
| 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
MT
Mike T
Nov 23, 2025
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Korby and the rest of the team at Core 4x4 know there stuff and answered my question in a timely manner. They even were able to quick ship a re-build kit for me so I could get my truck back on the road- Thanks!
TH
Todd Hume
Jan 22, 2026
★
★
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Their products are great but the service is even better!! Thanks Korby.
MM
MIKE (Mike the Mechanic)
Jul 26, 2025
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Amazing company and customer service!!!! I messed up on my order and the fixed it immediately. Would definitely recommend them. Can't wait to hit the trails with their product.
OJ
Oldgreg jr
Mar 23, 2025
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Good company, they offer well built parts and Great customer service.
I had a couple of hang ups with my control arms that I purchased, they were very easy to work with and found the solution to make them work.
BC
Brad C
Mar 24, 2021
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Outstanding experience! I asked Core to build me a set of custom control arms that were larger/heavier than they normally build. They gladly accepted the challenge and turned out an expertly crafted and super strong product ahead of schedule. Fit and finish are excellent. Spence and Cameron were a pleasure to work with every step of the way. And all of this for a very reasonable price. I highly recommend these guys!
JS
Jon Stempien
May 27, 2025
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Big thanks to Corby at core 4 x 4 outstanding customer service I like to thank them or 4 x 4 for helping me Well-made product in the United States recommend core 4 x 4 for all jeep Owners that like the four wheel
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.
MH
mark hinz
Mar 2, 2026
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Went above and beyond to get the parts we needed to complete our customers build for Moab Easter safari cant thank you enough for all your hard work and efforts
Thank you and look forward to working with you in the near future
PM
Paul Melancon
Aug 25, 2025
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Ordered a control arm and track bar kit for my WJ from Core 4x4 on Monday 7/28 and received it today, Friday 8/1. Im not a state or two away, im in CT aka the other side of the country. Communication is phenominal, emails were responded too in an hour or less. Parts arrived well packed, not damaged, and are great quality for my needs. There arent many companies left that service customers as well as Core 4x4 and i wont hesitate to check them out again if i need something else. Well done!
GC
Grant Chaisson
Jun 26, 2025
★
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These guys are awesome!! They have helped me build multiple jeeps from zjs to mjs and now with my lj build they all ways impress.
There products are the best on the market in my eyes. The best part about it all is it's all made right here in american and shipped anywhere in the world 🌎 .
Don't think twice when your looking for control arm or lift kits for your vehicle if these guys sell it BUY IT!!!
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Specifications
| Axle Side Bolt Size (Front Track Bar) | Factory, 1/2 Inch, 9/16 Inch, 5/8 Inch |
