This is a A-807-3521 Clamp Yoke Implement Yoke PN: 807-3521Main Description As Following : A-807-3521 Clamp Yoke Implement Yoke PN: 807-3521 Found in Section & Models : Driveline > Driveline Components, Weasler Domestic: 35 Series, Driveline > Yokes, Weasler Domestic: 35 Series Associated Items : New Also This is An Aftermarket Product And : Implement yoke, clamp style. Original Weasler part. Bore: 1 3/8" - 21 Spl.