This is a A-R59063 Shaft, PTO (1000 RPM) PN: R59063Main Description As Following : A-R59063 Shaft, PTO (1000 RPM) P.N: R59063 Dim A (1): 60.375" longDim B (2): 20/26 SplineReplaces: R65365 Replaces: R65365 JOHN DEERE , Crossed From: AMR59063 , , WN-R59063 , , WNR59063 , Found in Section & Models : PTO Parts > PTO and Related Parts, John Deere TRACTOR: 4640 (QUAD TRANS.) Associated Items : New Also A-JD-O-OMR65463, A-SMJD202 And : High Quality Afternaket Shipped from Both US and Canada