This is a A-102-4420 Quick Disconnect Tractor Yoke PN: 102-4420Main Description As Following : A-102-4420 Quick Disconnect Tractor Yoke PN: 102-4420 Found in Section & Models : Driveline > Yokes, Weasler Domestic: 44 Series Associated Items : A-13002020 Also This is An Aftermarket Product And : Original Weasler part. Bore: 1 3/4" - 20 Spl.