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
Everything you need to refresh your suspension.
This rebuild kit includes all the essential components needed to replace common wear items and restore performance.
BSH-CB-2579 × 4
| Make | Model | Submodel | Years |
|---|---|---|---|
| Ram | 1500 | 2009 - Present |
Construction & Materials
Ram 1500 09+ 2pc Town Series Rear Upper Adjustable Control Arms
Rear Upper control arms built with 1.875” DOM 3/16” Wall DOM. Polyurethane Bushings on both the adjustable end and fixed end with 1.25” x 12 TPI - 3.25” long threads.
Reviews of Core 4x4
5.0
★
★
★
★
★
132 reviews
PG
Paul Griffin
Feb 21, 2026
★
★
★
★
★
Great long arm kit with everything else I needed as well! They worked with me to ensure that I was getting an upgraded components kit just like I wanted. Fast shipping with some of the best packaging that I have ever seen. Nothing was scratched or missing and this kit is even more impressive than the videos or website can show. Powder coating looks great with no issues.
I would highly recommend CORE 4x4 to anyone looking for a great quality kit.
TR
Tim Reigies
Mar 25, 2018
★
★
★
★
★
Received the track bar I ordered, product looks extremely strong, thx core 4x4
GV
Gil Valk
Sep 24, 2025
★
★
★
★
★
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!!!
RC
Ryan Colligan
Mar 4, 2026
★
★
★
★
★
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.
DW
Derek Whitfield
Nov 20, 2025
★
★
★
★
★
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.
SC
Singer Heating and Cooling
Mar 25, 2018
★
★
★
★
★
These guys are great. You can get them on the phone for support. This important and is not always the case with other custom parts builders. Their control arms are bomb proof and offer plenty of options. You can get real genuine Currie Johnny joints without paying the price for Currie arms.
DT
Dean Tk421
Feb 21, 2026
★
★
★
★
★
I purchased the Jeep WJ control arms Camp series over a year ago. Very pleased and impressed. Easy installation and solid build. Bracket broke for rear upper control arm, they redesigned it to be more robust and sent me a new one with hardware, honoring their guarantee!
RH
R and H H
Oct 24, 2025
★
★
★
★
★
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.
MP
Mirko Pompili
Mar 19, 2026
★
★
★
★
★
I want to share a truly positive experience.
I ordered a car kit consisting of two packages, but unfortunately one was lost during shipping with UPS. The situation could have become complicated... but it didn't.
The company manager was extremely helpful and professional: he personally followed up on the situation and did everything he could to resolve the issue, even sending me the package again without hesitation.
It's rare to find such attentive and reliable customer service these days.
My sincere congratulations on your professionalism and commitment: that makes all the difference.
JF
jacob fezza
Mar 24, 2022
★
★
★
★
★
I wanted to take a moment and give these guys a shout out, I’ve currently got, for my xj, their adjustable control arms, tier 4 adjustable track bar and adjustable leaf spring shackles. You can always count on a fair price, high quality products, and quick delivery. Keep up the great work guys, will definitely continue to shop with you
Your Dynamic Snippet will be displayed here...
This message is displayed because youy did not provide both a filter and a template to use.
