Pinion Shaft
CTPA-R59698 Replacement Part to Fit:  John Deere For Models: 4255, 4350, 4440, (8440, 8450 ALL FRONT AXLE), 8630 FRONT AXLE SN 7843-> 14 Tooth, 18 Spline, 10.580" Long  Price:  $183.75  Buyers Club Price:  $165.37