This is a A-101-8306 Tractor Yoke, 1 3/8" - 6 Spline w/ SSL PN: 101-8306Main Description As Following : A-101-8306 Tractor Yoke, 1 3/8" - 6 Spline w/ SSL PN: 101-8306 Found in Section & Models : Driveline > Yokes, Bondioli & Pavesi 100 Series: Size 3, Walterscheid W Series: I Associated Items : New Also This is An Aftermarket Product And : Weasler alternative to original part. Bore: 1 3/8" - 6 Spline