Autoloc’s revolutionary Electric Window Crank Switches allow you to operate your power windows with your vehicle’s original window crank handle. Thus, eliminating the need to mount aftermarket switches in your door panels. To operate your electric window, simply rotate the window crank up or down 15 degrees. To ensure safety, Autoloc offers a positive dead lock stop, and return-to-center spring design which creates a heavy duty system that won’t break or snap. These switches will work with your factory window crank to give your vehicle a traditional look. Available in 5 shafts styles: spline shaft 1 (Fits GM 1950 and up), spline shaft 2 (Fits early GM, Ford, European and Asian), square shaft S (Fits early Mopar and others), spline shaft 3 (Fits 1931-1938 Chevy), spline shaft 4 (Fits 1939-1948 Chevy.) Custom splines are available for other applications. Ideal for all vehicles, including hot rods, custom trucks, and cars! Made out of billet aluminum and stainless steel fasteners. When quality counts, count on Autoloc! Sold per side (each) Fits early year vehicles with square window crank shafts. Featured on several TV shows including Monster Garage, and Pimp My Ride AutoLoc kits deliver where all others fails. Insist on the best, and insist on AutoLoc and you be glad you did.