If the oil is coming out the bell housing it could be a bad seal, charge pump gasket, cracked charge pump, drive hub on converter with a grove worn in it, or a problem with the converter/ shell/weld seam. Did you have the converter out, did you check the run out on it before installing your shuttle. Is the shuttle overfilled with fluid, is the hyd oil filter above the converter leaking and dropping fluid down on the bell housing.