Well I'm in the middle of redoing my heads on my 3blow an while Iv got everything out one of the things I wanted to do was throw a bigger trans cooler that came off my f250 it's very thick but short not too long in length an tucks perfect in the lower part of the bumper, now I was gonna run it direct from the lines that origanely go to the radiator, now is that ok to do with e340H trannys would it be too much or help it much better then the cooler on the radiator ?

 

The cooler on the radiator is not just for cooling: it helps warm up the trans fluid when it's cold out too.