Hello all I have toro #71196 and the rear end is leaking... Appears the botton of the case is cracked (hairline crack) and is leaking...enough to the point it move nowhere.. SO I put it up on stands and when I spin the wheel the other does not move I mean both are independant reagardless if I apply the brake/clutch and i verified the free wheel lever position...kinda like some thing inside let go and crack the case??? Is this possible....?? Has any one split one of these and purchased a new lower case or welded it??? Any help TIA Forgot to add..the hydro gear axle is a Hydro-Gear #326-0650 I am looking for the service manual for steps on disassembly and reassembly....afraid when I open it parts will go every where.