go with the "diesel turbo life saver" available threw Geno's garage this was my # two on my gottohaveit list when i bought my then new 04. 5 2500 2w drive after 100,000 miles I had a problem with it not working. It would not set time. Called the product manufacture at geno's advice. they told me NO PROBLEM. remove and return they would inspect repair and return at no cost. just shipping. but than asked if I was having any other problems. told him I had a tcc code as well and an other i could not id he recommended further investication before iremove because in the 04 models its not a simple plug in. So I took it to my transmission guy and he told me the other code was a brake problem. The ECM thought that the brakes were being applied and thus unlocking the torque conveter clutch. RIGHT that was my thought but they had always been striaght with me before. And charged me NOTHING! to hook up and read. So I went to the dealer to order the brake light switch. It was in stock and only what seemed to be a few bucks. installed according to the directions and to my surprise all was well again. Ther are good venders out there the DTLS is a very good product back by a company that truely knowes there product. thanks to A&A transmissions SUPPORT YOUR LOCAL VENDORS times are tuff and your neighbors can be your best warranty.