This is a A-10001-1041 Implement Yoke, 1" Round Bore, 1/4" Keyway, W/ Set Screw PN: 10001-1041Main Description As Following : A-10001-1041 Implement Yoke, 1" Round Bore, 1/4" Keyway, W/ Set Screw PN: 10001-1041 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 : Implement Yoke. 1" Round bore with 1/4" keyway and set screw. Yoke centerline is 1-11/16". Weasler alternative to original part. Bore: 1" Centerline: 1-11/16" Replaces: Neapco Part No: 10-1705 Single Keyway: 1/4"