Energy Suspension Black Rear Sub-Frame Mount Insert Bushing Set (2010 Chevy Camaro) 3.4168GEnergy Suspension Black Rear Sub Frame Mount Insert Bushing Set 2010 Chevrolet Camaro Part #: 3. 4168G Overview If you're experiencing less precise handling or a feeling of looseness in your Chevrolet Camaro's rear suspension, upgrading to Energy Suspension's Black Rear Sub Frame Mount Insert Bushing Set is an excellent solution. These bushings are designed to replace the factory rubber components, providing a firmer, more responsive connection