RockJock’s Sway Bar End Link Mounting Kit for 2021-up Bronco installs into the hole on the Bronco front lower control arm that the factory sway bar end link is removed from. This kit includes the billet steel end link mounts, the RH/LH specific rotational locks and the new nuts to tighten them up with! The bores in the side of the mounts allow our end link rod ends to bolt up with the rod end nut installed into the bore on the side of the mount. Fabricated from 1 1/4 in. steel bar stock, the mounts include various machined features including bores in the sides of the mounts allow our end link rod ends to bolt up with the rod end nut installed into the bore on the side of the mount, a wrench flat that accepts a 7/8 in. wrench, a double-D shaped machined hub that the RH and LH rotational locks fit onto and 9/16 in.-18 RH threads on the bottom. Rotational locks are laser cut and formed 1/8 in. steel and the locking flange nuts feature 9/16 in.-18 threads. Finish on all components is clear zinc plating.
| Brand | RockJock |
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Reviews from Google
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132 reviews
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Ajay Paynter
Mar 4, 2026
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Great company, who worked with me on shipping parts to arrive in time for a show. When I explained my concern they went above and beyond to make it happen. Quality of the parts is top notch.
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Ryan Colligan
Mar 4, 2026
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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.
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Marcus Torres
Jan 15, 2026
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Best control arms I have installed on any of my builds. After running every major manufacturer, Core 4x4 is on par or better than all the high-end companies at a fraction of the cost. Lifetime warranty is the cherry on top.
TG
Travis Grimm
Mar 23, 2024
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To start off if you're looking to upgrade your control arms definitely hit this company up. Great product, easy install of the product, with three different tiers everything is priced pretty good, I'm a sticker guy and they sent a sticker for each arm each track bar and also three extra ones so the extra are on the Jeep the advertise them for sure. If you're reading this review I highly recommend you to check their website out.
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Mike Nielsen
Nov 23, 2025
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The customer service is first class. I had an issue with a track bar I installed on my F350. I don’t have any other Core 4x4 parts yet, but with the way I was treated, I know their parts are well done, because they went above and beyond to make sure I was made whole. They wouldn’t be in business if they had to take care of a lot of people like they took care of me. Will definitely be back when it’s time to build the Jeep!
JM
Jason Mitchell
Dec 8, 2025
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Installed the full kit on my XJ. Ride quality is night and day better than what I had before. The articulation on the trail is insane. These guys know what they are doing. Already recommended Core 4x4 to everyone in my club.
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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
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DSI
Jul 26, 2025
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Great products with excellent customer service after the sale
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Brantly Musgrave
Jan 22, 2026
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First and foremost would like to say that Core4x4s customer service is top notch and they definitely stand behind their warranty on products! Highly recommend using them for any of your off road needs! It’s rare to find a company now a days that backs their products and they do!
Had a few issues with mounts and control arms and they handled it without hesitation! Thank you!
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Mr. V
Mar 24, 2021
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Good quality parts, much stronger than stock
