Both shafts together are longer than 1/2 ton. The front shaft has the ball/socket joint on the front where it hooks up to the trans. and has the carrier bearing at the other end. Past that is an open yoke for a conventional U-joint. There is a seal in there right ahead of the yoke. Mine leaks. The rear shaft is rather short with yokes on both ends. I searched the internet and found some info about the Truckstell OD - apparently available from about 40 - 48 in cars. Maybe someone knows more???

Professional Novice