ar220029 diff set center 50T, steel gears, outdrives and shaft Inserts\ncomposite plastic diff case all parts required to rebuild differential. One\neach; 50T spur gear, diff case, insert, 43T crown gear, gasket and m4x3mm set\nScrew two each; metal cross Shafts, planetary gears, for d. This product is\nmanufactured in China.