I'm looking for the largest (or larger then my factory '02 Silverado) external tans cooler that I can mount in the factory location and use the quick connects. More power to those that have the aftermarket add on that you cut the factory lines and hose clamp rubber lines to it and it works fine and you don't mind the looks. I will say I didn't do my due diligence by measuring my current one recently and then researching options from there. Say from a 2500 HD or newer year etc. I just thought someone might know having gone this route before. Beings how this is my umpteenth trans (long story semi unrelated to the cooler issue) I want over kill. I have an aftermarket temp gauge (I might go Denali dash cluster down the road but I already invested in the A-pillar tri gauge set up and gauges) and a slim electric fan. I was hoping to double the width (or close to) and add a few inches to the height. (insert NSFW reference here_____. ) I will also be contacting a local vendor where I bought my bigger radiator when I did the twin electric fan conversion. Thanks for any guidance.