This is a A-101518A Shaft, Clutch PN: 101518AMain Description As Following : A-101518A Shaft, Clutch P.N: 101518A Dim A (1): 12.875" LongSpline Count: 19 Spline Found in Section & Models : Transmission & Rear Axle > Clutch Related Parts, White/ Oliver/ Mpl Moline TRACTOR: 770 Associated Items : New Also A-FRM-IHOL, A-OL-O-770, A-OL-O-770880, A-OL-P-770-880, A-OL-S-3VOLUME, A-SMO201 And : Dim A (1): 12.875" Long Spline Count: 19 Spline