This is a A-800-1015 Implement Yoke, 15/16" Round Bore, 1/4" Keyway, W/ Set Screw PN: 800-1015Main Description As Following : A-800-1015 Implement Yoke, 15/16" Round Bore, 1/4" Keyway, W/ Set Screw PN: 800-1015 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. 15/16" Round bore with 1/4" keyway and set screw. Centerline is 2-1/2". Weasler alternative to original part. Bore: 15/16" Centerline: 2 1/2" Replaces: Neapco Part No: 10-0473 Single Keyway: 1/4"