This is a A-805-1018 Hexagon Bore Implement Yoke (w/ Set Screw) PN: 805-1018Main Description As Following : A-805-1018 Hexagon Bore Implement Yoke (w/ Set Screw) PN: 805-1018 Found in Section & Models : Driveline > Driveline Components, Neapco DOMESTIC: 1000 SERIES, Driveline > Yokes, Neapco DOMESTIC: 1000 SERIES Associated Items : New Also This is An Aftermarket Product And : 1000 Series Implement Yoke. 1-1/8" Hex bore with Set Screw. Weasler alternative to original part. Bore: 1 1/8" Replaces: Neapco Part No: 10-0432 Series: 1000