1993 Ninety Eight Regency Elite
 

Have recently discovered coolant in my trans fluid and vice versa, after having the radiator replaced and trans filter, with a flush, literally less than 500 miles in between. is there anyway fluids would cross contaminate outside of the trans cooler? Love this car but im getting sick of of the issue. have developed a strong feeling of malcontent towards the 4T60 Next on the list is a deck resurfacing and new heads, and gaskets. outside of that, im lost. any help appreciated tnx