dont hundred percent know that its a willys wagon but I know its a willys vehicle because it has the t90a-1 transmission with the spicer 18 transfer case and the offset axles, according to the measurement hub to hub it should be for a wagon. I originally wanted to use it to build a mini truck that would fit on utv trails but I would rather use the money on other projects Shoot me an offer, willys enthusiasts love these transmissions and axles. You can adapt these transmissions to small block chevys or ford 351 Windsor motor. It looks like it already has one of these adapters on the trans but I dont know which one