Looking to buy a a/m transmission cooler for 2004 chev silverado 1500 4X4 5.3L. Would like a kit that comes with lines that go all the way back to the transmission. currently the truck has a cooler built into the rad that i'd like to plug off. Main reason for wanting external cooler is local gm dealer cant get me the parts i need to get the lower cooler fitting on the rad to stop leaking trans fluid. Also with the colder weather the rubber hoses have a habit of popping off of the steel lines. So does any one know of any not too expensive external coolers for sale online? Not really doing any towing with the truck so it doesnt need to be huge.