Thanks, thats what I'm gonna do. I ordered the b&m supper cooler and my cousin just gave me a hayden trans cooler. Probaly have the oil go thru the b&m cooler first then thru the hayden and back to the trans. What do ya think?

 

You should rethink running 2 auxillary coolers in series, you run the risk of restricting flow and not lubing correctly...imho you should just run the 40k cooler. theres probably a thousand guys around here running that, why not go with something thats proven? That being said I've run both of those other coolers on other vehicles and they worked just fine, i've got the 40k on my truck, this is my first experience with it and its definitely a nice piece.