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 12mm x 80mm high grade bolts, 4 12mm top lock nuts, 8 12mm 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 9/16” x 4” high grade bolts, 2 9/16” top lock nuts, 2 9/16” catch tabs, 8 9/16” flat washers
Front Track Bar Hardware Kit Includes:
2 9/16” x 2.75” high grade bolts, 2 9/16” top lock nuts, 4 9/16” flat washers
Rear Track Bar Hardware Kit Includes:
2 9/16” x 2.75” high grade bolts, 2 9/16” top lock nuts, 4 9/16” flat washers
Front End Link Hardware Kit Includes:
2 12mm x 70mm high grade bolts, 2 12mm x 80mm high grade bolts, 8 12mm flat washers, 4 12mm top lock nuts, 2 aluminum spacers
Rear End Link Hardware Kit Includes:
2 12mm x 70mm high grade bolts, 2 12mm x 80mm high grade bolts, 8 12mm flat washers, 4 12mm top lock nuts, 2 aluminum spacers
Reviews of Core 4x4
5.0
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132 reviews
Z
Zion
Sep 24, 2025
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Every product I have received from them has been nothing short of fantastic. Korby in Customer service went above and beyond to help me fix my own mistake. I cannot reccomend them enough.
FS
Fernando Salazar
Aug 25, 2025
★
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Great quality control arms and great customer service. Korby has been a great help at answering my questions on some issues I’ve been having with installation!
RH
R and H H
Oct 24, 2025
★
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Top notch company. Mechanic lost bolts that clamp upper control arms. Korby sent out spare bolts no charge. Best customer service I’ve come across in a long time. Only suspension brand I’ll ever use.
JH
Joe Hu
Sep 24, 2025
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Amazing! I put all my new control arms and it drives a lot smoother and looks great!!!
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.
DD
DANIEL DUSSAULT
Nov 23, 2025
★
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Very beefy items for a very reasonable price. Personally have CORE rear track bar and all upper control arms for my 04 Jeep TJ. Had a slight issue with control arm length and they went above and beyond to swap jam nuts to get me where I needed to be. Really have to appreciate a company like this.
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
WT
William Turton
Nov 23, 2025
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Finally a company with a great product and customer service to match. I changed my order last minute from short arms to long arms. The lift is extremely well built. Korbey was awesome! Highly
recommend Core 4x4
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.
M
Matt
Mar 23, 2024
★
★
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The best products on the market. 95% of my xj is core 4x4 products
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