Chevy control arm bump stops new from Classic Performance Products in sealed package. Energy Suspension 9.9151G Universal Bump Stop. These high quality polyurethane upper control arm GM type bump stops fit 9/16" hole (1/8" thick) and are 1 9/16" tall x 1 13/16" diameter. Fits 1956-57 Chevy Fits: 1958-70 Chevy Impala Fits: 1964-72 GM A Body Fits: 1963-75 Corvette Fits: 1968-74 Chevy Nova Fits: 1967-69 Chevy Camaro, Pontiac Firebird Call 801-836-8730