This new Mopar B/RB windage tray includes molded rubber gaskets on the top and bottom for a one-piece design. The windage tray is made from glass filled nylon & molded rubber (modern materials that hold up to heat & oil). The molded rubber gaskets don’t need any RTV, so future service is easy (no scraping off old gaskets and replacing them each time the oil pan is removed). The re-usable windage tray / gasket can be washed w/ soap & water. Made in the USA. Features: Combination Windage Tray & Oil Pan Gasket for Big Block Chrysler / Mopar Fits 383, 400, 413, 426W, 440 & 426 Hemi.