Are you doing a rebuild or just some updates to your Synergy Suspension? Use Synergy Track Bar Ball Joint End as the perfect replacement for your track bar ends. Designed to work with Synergy Adjustable Track Bars, these replacements are a durable solution that gives excellent ride quality with no rattling or vibrations while driving and gives a sturdier connection to the road. Each comes with a snap ring, ball joint ends, and a Forged Rod End.