This is a A-AN152628 Disc: 6.5" PN: AN152628Main Description As Following : A-AN152628 Disc: 6.5" P.N: AN152628 Spline Count: 10Spline Diameter: 1.250" Found in Section & Models : Clutch Parts > Clutch Parts, John Deere GRAIN DRILL: 1550 Associated Items : New Also This is An Aftermarket Product And : Spline Count: 10 Spline Diameter: 1.250"