fluid type for A-518

lol, transmission shop called me back today and said they had to send the torque converter back to the company that they get them from and order me another me one??? on my message he said they think its out of balance? ether way they were arguing with me about it for a few days untill i told them hey look i know its the transmission, so unless you guys wanna be re-building it again you might wanna take a harder look at it, and then 2 days later they call back and say im getting a new torque converter lol.
I just hope it didnt hurt anything else? it seemed like it was slipping a tad in overdrive and in 3rd gear at higher speed but other then that it still shifted fine and wasnt leaking any fluid anywhere? i have a descent sized cooler on it so hopefully that helped save it? i dont know im going to call them back and ask them if the fluid smelt burnt or if there was any particles in the filter cause im sure having the torque converter acting the way it was it probly brought some heat to the transmission.