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
RockJock's 1 in.-14 left hand thread jam nut for use on RockJock Johnny Joints with treaded shanks, or in any other application that would need a 1 in. jam nut. Gold zinc plated, sold each.
| Brand | RockJock |
Reviews of Core 4x4
5.0
★
★
★
★
★
132 reviews
KK
Kevin Kinard
Oct 24, 2025
★
★
★
★
★
Great product, excellent customer service. I mistakingly ordered a track bar for the wrong year model and Korby helped me out by sending me the correct part that I needed no questions asked. I highly recommend.
TH
Todd Hume
Jan 22, 2026
★
★
★
★
★
Their products are great but the service is even better!! Thanks Korby.
RH
Roger Hooks
Jun 26, 2025
★
★
★
★
★
2018 Ram 2500 Rear Control Arms and Rear track Bar been running for about a year, Great Solid Products and great one on one customer service, same day response with issue resolved!
Thanks Korby!
DS
Dana Smith
Jul 26, 2025
★
★
★
★
★
Excellent, strong, and durable products—perfect for both on-road and off-road applications. The customer service is outstanding—friendly, knowledgeable, and extremely helpful with understanding installation and ensuring I got exactly what I needed. I would definitely order again. Top-notch company with high-quality products made right here in the U.S.A.
RD
Reagan D'mello
Dec 23, 2025
★
★
★
★
★
Love the product. Excellent customer support 👍🏽 …
8
89Patriot
Jan 22, 2026
★
★
★
★
★
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.
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.
E(
Eric Hernandez (savagefit)
May 27, 2025
★
★
★
★
★
The whole process was quick and painless. The products are top tier and when I reached out them for package update info, Korby Linscomb was very responsive, and got me the answers I needed the same day. Even when I emailed back to some additional info, he sent what I was looking for that same day. I love core 4x4 and will be giving them my business from now on.
PB
Peter Busack
May 27, 2025
★
★
★
★
★
Purchased a set of Trailing arms for my Ram 1500, quality is first class. I bought the ones with the Jonny Joints for more articulation and it appears from the construction I should get a lifetime of use, Zerk fittings are an added plus. Would defiantly recommend, and the the service team answered all of my questions.
TR
Tim Reigies
Mar 25, 2018
★
★
★
★
★
Received the track bar I ordered, product looks extremely strong, thx core 4x4
Your Dynamic Snippet will be displayed here...
This message is displayed because youy did not provide both a filter and a template to use.
Specifications
| Brand | RockJock |
