This is an original NOS front knuckle seal retainer half. It takes two of these for one front knuckle. It takes four of these for one front axle. These were used originally on the MB, GPW, CJ2A, CJ3A, M38, M38A1, M170, CJ3B, and early CJ5. This is made of pot metal and is a two piece construction. (there is a front half and a back half pressed together) There is no seal in these. These are all military repackaged NOS originals. This sale is for one half which is what is in the picture. Some are in clear cosmoline and some are in black.