This is a A-155584A Shaft, PTO, 12 Spline PN: 155584AMain Description As Following : A-155584A Shaft, PTO, 12 Spline P.N: 155584A Dim A (1): 70.375" Long Crossed From: AM155584A , , HD155584 , , 155584N BMD MFG Found in Section & Models : PTO Parts > PTO and Related Parts, White/ Oliver/ Mpl Moline TRACTOR: 1600 Associated Items : New Also A-FRM-IHOL, A-OL-O-LDR1600, A-OL-O-1600GLPD, A-OL-P-LDR1600, A-OL-P-16001650, A-OL-S-1600, A-SMO202 And : Dim A (1): 70.375" Long