The motor mounts in your 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, or 1972 Chevelle will need to be replaced after approximately every 50,000 miles, or if they become soaked from fluids like oil several times. From excessive use and abuse, the mounts get weak and will not secure your engine properly. The rubber from the original mounts can degrade and split, eventually leading to failure. Also, when accelerating or decelerating, if you feel or hear a loud noise from under your car, you should check for signs of fan to shroud contact on your radiator core or fan sh

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov