I've been thinking of hooking up a transmission cooler to my Traverse and I just got off the phone with a manager at one of the local transmission shops and he said that it was my truck and my money and he'll put in whatever I want, but he wanted to steer people away from a transmission cooler for several reasons.
- First, they tend to leak and if a line blows from the extra pressure created from towing, then you're in a whole new world of hurt on the side of the road.
- Second, it's a cheap substitute for proper cooling like getting the factory towing package and cooling systems.
- Third, most of the stuff that is made for these types of transmission coolers are junk and they have cheap aluminum fins that break and/or bend easily.
- Last, they just don't work all that well. Waste of money compared to the risk of being stranded and/or frying your transmission.