Hey guys. I am not too famelier with Gm trans. I am a Toyota man. Dont hold that against me! I have a 2004 Chevy express 2500 that I use for work. I do not tow. I see that all of you suggest installing a trans cooler. I need to know who and what model to get. Also I want a trans temp gauge, a nice digital one would be nice. Thanks in advance for your help.