Jeep JK Wrangler Heavy Duty Rear Track Bar Bracket - USA Made! The 47-6438 Heavy-Duty Series REAR TRACK BAR BRACKET is an important component for lifted Jeeps. This kit includes one (1) bolt-on ReadyLIFT Heavy-Duty Series track bar bracket and hardware. This Rear Track Bar Bracket helps to correct important suspension geometry both on and off road. The bracket aids in keeping the rear track bar aligned properly with the axle housing while also providing a super strong axle mounting point for when severely articulating the Jeep suspension in an off road or rock crawling environment.