ok, here we go again... i worked on mower today and i filled the hydro tank then lifted mower off the ground, then put in forward and ran it for a while and only one wheel was turning the other i could stop with my hand!! so i let run some more and now it seems to work fine again.. no issues except still has a few leaks.now i am really confused and wonder if i should do anything at all or take off hydros and get a rebuild kit?? Also where do i get the kits for hydro gear? never seen them offered at exmark...........