We have many Hustler Rangewings 400/440/4500/4600s. On the newer units with hydraulic wing decks we have problems occassionally with seal leaks. Motor part numbers are 758961 (A Rotation) and 761239 (C Rotation), the seal kit is part number 759134. According to our local dealer only the seal kit is available to repair these motors. We have noticed that most of shafts are getting pitted at the seal area. Is any other parts available for these motors, i.e. new shafts? Complete motors are expensive!!! Do you have any part breakdowns on the motors? Are parts available anywhere else, if not from Excel?