My 2013 JK just installed a Skyjacker. I thought upgrading from the factory to a dual anti-roll bar would be a nice addition. Installation went well, instructions were useless, but I found a video on YouTube. After installation, two days later, it swayed severely and found that one side had fallen off completely. Lost rubber bushings and nut. I found a replacement and used locknuts instead of the included locknuts. Yes twisted to factory settings. Yes, I took my time and measured everything according to the instructions. Take my advice: either tighten the factory nuts all the way, or replace them with locally made locknuts. Seems to be working fine now.