This is a A-R34201 Shaft, Transmission Input PN: R34201Main Description As Following : A-R34201 Shaft, Transmission Input P.N: R34201 Dim A (1): 21.310" longDim B (2): 19 / 19 Spline Found in Section & Models : Transmission & Rear Axle > Trans Related Parts, John Deere INDUSTRIAL/CONSTRUCTION: 600, John Deere TRACTOR: 4000 (SYNCRO RANGE TRANS.), John Deere TRACTOR: 4010 (SYNCRO RANGE TRANS.), John Deere TRACTOR: 4020 (SYNCRO RANGE TRANS.), John Deere TRACTOR: 4320 (SYNCRO RANGE TRANS.) Associated Items : New Also A-JD-O-OMR46934, A-JD-O-OMR48273, A-JD-P-PC1116, A-JD-S-TM1006, A-SMJD203, A-FRM-JD, A-JD-O-OMR32129, A-JD-P-PC737, A-JD-S-SM2039, A-MW-OP-JD4010, A-MW-S-TURBO, A-SMJD203, A-FRM-JD, A-JD-O-OMR34410, A-JD-O-OMR41754, A-JD-O-OMR46934, A-JD-O-OMR48273, A-JD-P-PC1116, A-JD-P-PC859, A-JD-S-SM2039 And : Dim A (1): 21.310" long Dim B (2): 19 / 19 Spline