Gevog Rear Tailgate Trunk Liftgate Gas Lift Support Struts Spring Shocks for 07-14 Cadillac GMC Chevy Position: Rear Left & Rear Right Parameters: Extended length: 22.64"; Compressed Length: 13.98" Material: Made from High Quality Steel Enhances Performance Through Improved Oil and Gas Pressure Sealing, Manufactured with Bearing Quality Precision to Promote Longer Operating Life Always Replace Both Lift Supports to Ensure Top Performance and to Prevent Twisting Caused by Uneven Loading