you can save a couple bucks by just removing the check ball from the stock fitting in the heat exchanger .
heres a couple tips , mopar puts alot of paint on the fittings making it a bit tough to get a correct size wrench on . scrap off some paint at both ends , also blow aitr thru the tube in both directiuons to make sure the check ball is working properly , a stck ball will overheat the trans .
also pay attention to the end at the heat exchanger , get a bit overzealous on tightening that end can twist the rubber hose blocking flow .