Made in USA
Orem, Utah
You break it, we replace it
Warranty on non-wear items
10 Colors
In-house powder coat
Fully Adjustable
0-6" of lift
3 X-Series Options
Only Core 4x4
Product Details
| Brand | RockJock |
RockJock's narrow forged Johnny Joints for fabricators and suspension system builders offer 40 degrees of unrestricted movement in any direction as compared to 22 degrees on a common heim joint! Johnny Joint rod ends offer cushioning that a heim joint cannot provide via high-density urethane bushing that encases the inner ball. The heat treated center balls are cross-drilled for thru-bolt lubrication and the joint internals are retained with 2 heavy duty, heat treated side washers and a snap ring. This specific joint is a 2 in. diameter, fitted with a zerk fitting for greasing, 2 1/4 in. of 3/4 in.-16 left hand threads on the shank, and a 1.600 in. mounting width ball with a .625 in. thru bolt hole. Finished in gold zinc plating.
Store reviews on Google
5.0
★
★
★
★
★
132 reviews
DD
DANIEL DUSSAULT
Nov 23, 2025
★
★
★
★
★
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.
AP
Ajay Paynter
Mar 9, 2026
★
★
★
★
★
Great company, who worked with me on shipping parts, to arrive in time for a show, when I explained my concern of possibly not getting the control arms in time. Quality is amazing on the part, affordable price for what you get, and the powdercoat is top notch, not a single issue with this product, would buy again.
M
Matt
Mar 23, 2024
★
★
★
★
★
The best products on the market. 95% of my xj is core 4x4 products
GH
Gary Haag
Aug 25, 2025
★
★
★
★
★
Ordered a set of Core 4x4 control arms for my 2006 Jeep TJ. These are some heavy duty quality control arms. Can't wait to get them installed. Great customer service too!
GK
GLENN KOSZKA
Apr 27, 2025
★
★
★
★
★
The folks at Core 4X4 are always wonderful to deal with. They explain your options and never pressure or rush things. The quality of the Core Control Arms is top shelf, especially if your goal is to stop wheel hop. I recommend Core 4x4 without reservation ! ! !
MV
Mr. V
Mar 24, 2021
★
★
★
★
★
Good quality parts, much stronger than stock
RC
Robert C
May 27, 2025
★
★
★
★
★
Fantastic products! Outstanding performance!! Absolutely the best customer service!! You will not be disappointed!
JO
Jaime Overmyer
Nov 23, 2025
★
★
★
★
★
Korby was extremely helpful in helping me find the right part for my truck. He was kind, knowledgeable, and patient while I asked a million questions. He also went out of his way to find the right shipping option for me since it’s tricky where I live. I’m looking forward to getting the parts so I can fix my truck and go adventuring again soon!
J
Justin
Mar 24, 2021
★
★
★
★
★
Small business, family owned, made in the USA, lifetime warranty. Purchased Tier 3 control arms and rear track bar for a 2006 Jeep LJ. Simple website and easy to contact over phone and email. I had some technical questions and they were happy to answer them. They allow local pickup and were built to order same week. The order was wrapped and ready when I walked in and even gave a tour of the shop. They abrasive blast all raw materials to achieve a better surface profile for powdercoat to adhere and create a smooth, durable finish. I also noticed several CNC machines and a robotic welder they use for all their parts. A small outfit with a robotic welder? Their concern for quality is obvious and it shows in the parts they make. Very impressed. Happy to do business with these guys.
SH
Shawn Hooten
Apr 27, 2025
★
★
★
★
★
Great products, shipped the next day during a big sale event. Core 4x4 gets it right and gets it done! Thank you all.
Your Dynamic Snippet will be displayed here...
This message is displayed because youy did not provide both a filter and a template to use.