This is a A-701-0600 Tube Weld Yoke (w/ Bearing Groove) PN: 701-0600Main Description As Following : A-701-0600 Tube Weld Yoke (w/ Bearing Groove) PN: 701-0600 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: 3 5/8" Fits Tube: 1 1/2" / .065 Wall