Hello all! My question is that my 2002 Tahoe with the 5.3 didn’t come factory with an external trans cooler. Only the one that’s built into the radiator. I was comfortable with installing a bigger one myself but that was under the assumption that i have the stock small external cooler which I don’t have. So my question is what brand cooler should i buy that is cost effective as I’m trying to do this on a budget. Also how difficult will this be. Because I will have to run new lines from the radiator to the front of the radiator for the new cooler? Has anyone done this before and knows what all i need. It’s a 4L60E obv. Thanks!