I'd like to add a transmission cooler to my newest vehicle purchase. I have one of those Hayden coolers and some rubber hose. I'm thinking I can cut the aluminum return line that leads back to the transmission and install the cooler here. I'm concerned with the rubber hose slipping off of the metal tubing though. Would hose clamps be enough? The tubing isn't flared or barbed. I figured I could take some sandpaper and scuff it really good, clean it with brake cleaner, and put two small hose clamps on each connection? Or should I try something different?