This is a A-301-1200 Shaft Weld Yoke (w/ Bearing Groove) PN: 301-1200Main Description As Following : A-301-1200 Shaft Weld Yoke (w/ Bearing Groove) PN: 301-1200 Found in Section & Models : Driveline > Yokes, Weasler Domestic: 12 Series Associated Items : New Also This is An Aftermarket Product And : Bore: 15/16" Square Series: 12