Originally, GM installed these washers behind the window cranks in millions of vehicles including Chevelle. These are quite often left off of a restoration because they are usually really hard to see behind the window crank or they have deteriorated from age. You will need them for your Chevelle restoration because they serve an important purpose. These window crank washer plates protect your door panels and rear side panels from being cut by the metal back of the window crank. Buy the best parts for your restoration from Eckler's Chevelle.