Holden Monaro GTO Energy Suspension Rear End Control Arm Bushing Set # 3-3188GHolden Monaro GTO Energy Suspension Rear End Control Arm Bushing Set # 3 3188G Control Arm Bushing; Rear End Control Arm Bushing Set; Black Bushing Color: Black Bushing Material: Polyurethane Quantity: Sold as a kit. If your car's handling seems a bit on the sloppy side lately, then replace your mushy rubber bushings with Energy Suspension's polyurethane control arm bushing sets. Available for the front and rear, these polyurethane bushings are