This is a A-700716757 Tractor Yoke, Splined 1 3/8" - 21 Spline w/ QD, CV PN: 700716757Main Description As Following : A-700716757 Tractor Yoke, Splined 1 3/8" - 21 Spline w/ QD, CV P.N: 700716757 New CV (Constant Velocity) splined tractor yoke. Yoke has 21, 1-3/8" splines with quick disconnect. Replaces: Bondioli & Pavesi No. BP573063781. Fits Case-IH, Hesston, and New Idea round balers. Stocked As: A-BP573063781 Found in Section & Models : Driveline (by application) > Driveline Components, Case-IH BALER, ROUND: 8450, Case-IH BALER, ROUND: 8455 ((SN