Windshield wiper tranmsission mounting pads are the moulded rubber gasket between the cowl and the wiper transmission assembly. A small part that adds an extra fine detail to your restoration. Pads are correct for 1940 Buick 50 & 70 series, 1941 series 40, 1946-49 series 40. Oldsmobile 1940 series 60 & 90, 1941 Olds 70 & 90 series, and 1942-48 series 70. Sold in a pair.