This is a A-301-0600 Spline Shaft Weld Yoke (w/o Bearing Groove) PN: 301-0600Main Description As Following : A-301-0600 Spline Shaft Weld Yoke (w/o Bearing Groove) PN: 301-0600 Found in Section & Models : Driveline > Driveline Components, Weasler Domestic: 6 SERIES, Driveline > Yokes, Weasler Domestic: 6 SERIES Associated Items : New Also This is An Aftermarket Product And : Original Weasler part. Bore: 1" x 15 Spl. Series: 6