Or you can just add the aux cooler inline. I prefer that method. I let the fluid exit the tranny, then put it through a housing with the temp sensor, then to the stock cooler, then to the aux cooler in my drivers scoop, and finally back to the tranny. The stock cooler will knock a good bit of heat out of the fluid whether you're idling or cruising the interstate. The stocker is a liquid to liquid type that can pull a good bit of heat out (but only down to the coolant temp). The auxiliary can pick up the slack if the stocker can't handle the load. The auxiliary also has the ability to drop the temp below the coolant temp (because it uses ambient air). But the auxiliary is a liquid to air type. It needs a large mass of air passing through it to do any good (so you should be moving). So, I prefer to run both inline. Here's a pic of my routing:



Corbin

'95 ESI-T
HRC+FMIC+ETC...



Gimme fuel...Gimme fire...Gimme that which I desire