This is a A-101-7621 Tractor Yoke, 1 3/8" - 21 Spline w/ SSL PN: 101-7621Main Description As Following : A-101-7621 Tractor Yoke, 1 3/8" - 21 Spline w/ SSL PN: 101-7621 Found in Section & Models : Driveline > Driveline Components, Walterscheid P SERIES: P400, Walterscheid W Series: 2400, Driveline > Yokes, Walterscheid P SERIES: P400, Walterscheid W Series: 2400 Associated Items : New Also This is An Aftermarket Product And : Tractor Yoke. 1-3/8" - 21 Spline with Safety Slide Lock Weasler alternative to original part.