This is a A-R54545 Shaft, PTO (1000 RPM) PN: R54545Main Description As Following : A-R54545 Shaft, PTO (1000 RPM) P.N: R54545 Dim A (1): 62.375" longDim B (2): 21/26 Splines Crossed From: AMR54545 , , WN-R54545 , , WNR54545 , Found in Section & Models : PTO Parts > PTO and Related Parts, John Deere TRACTOR: 4630 (SN 7000-> QUAD / SYNCRO RANGE TRANS.) Associated Items : New Also A-FRM-JD, A-JD-O-OMR65495, A-JD-P-PC1296, A-JD-S-TM1172, A-SMJD50 And : Dim A (1): 62.375" long Dim B (2): 21/26 Splines