This is a A-801-0618 Spline Bore Implement Yoke (w/ 1/4" Pin Hole) PN: 801-0618Main Description As Following : A-801-0618 Spline Bore Implement Yoke (w/ 1/4" Pin Hole) PN: 801-0618 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 : 6 Series Implement yoke, splined. 1-1/8" 6 Spline yoke with square bore and 21/64" pin hole. Original Weasler part. Bore: 1 1/8" - 6 Spl. Pin Hole: 21/64"