what paths are there for the oil and water to mix?  obviously, the water pump seal but are there other seals?
 
	I replaced the water seal assembly with all new, it still leaks water into the trans oil, and there is oil in my coolant..like they both can flow both ways
 
	I removed the water pump from the case and pressurized the coolant system to about 15 psi. it held air for several hours.
 
	 
 
	any ideas?