This is a A-807-0616 Implement Clamp Yoke (w/ Bolt Hole & Set Screw) PN: 807-0616Main Description As Following : A-807-0616 Implement Clamp Yoke (w/ Bolt Hole & Set Screw) PN: 807-0616 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: 1" Round Keyway: 1/4"