Timbren Rear Suspension Enhancement for Chevrolet Express 3500

Eliminate Suspension Sag And Cushion Road Shock. Reduce Sway And Improve Roll Stability. Easy To Install With Basic Hand Tools. Improves Roll Control. Trouble And Maintenance Free. Warning: This product can expose you to chemicals which is [are] known to the State of California to cause cancer and birth defects or other reproductive harm.