This is a A-107-3520 Safety Slide Lock Tractor Yoke PN: 107-3520Main Description As Following : A-107-3520 Safety Slide Lock Tractor Yoke PN: 107-3520 Found in Section & Models : Driveline > Driveline Components, Weasler Domestic 80 CV: 35/44 Series, Driveline > Yokes, Weasler Domestic 80 CV: 35/44 Series Associated Items : New Also This is An Aftermarket Product And : Original Weasler part. Bore: 1 3/4" x 20 Spl. Category: 5 Series: 35/44