Pinion Shaft, 14 Tooth
CTPA-R61711 Replacement Part to Fit:  John Deere For Models: 4520, 4620, 4630 SN 12840->, (7020, 7520, 8430 ALL REAR AXLE ONLY), 8630 REAR AXLE SN <-7842 Replaces: R57614. 14 Tooth, 22 Spline, 10.730" Long  Price:  $227.85  Buyers Club Price:  $205.06