This is a A-102-0621 Quick Disconnect Tractor Yoke PN: 102-0621Main Description As Following : A-102-0621 Quick Disconnect Tractor Yoke PN: 102-0621 Found in Section & Models : Driveline > Yokes, Weasler Domestic: 6 SERIES Associated Items : A-13002021 Also This is An Aftermarket Product And : 6 Series Quick Disconnect Tractor Yoke. 1-3/8" 21 Spline. Bore: 1-3/8" - 21 Spl.