Is this a thing? I understand why people use them otherwise, but I've never heard of this reason. Also, a drill hole is free so it's no real cost over the 180deg thermostat.
There is info that a 3800 can be "tuned" for a 180 or lower t-stat, but I'm unsure how that has anything to do with the transmission.
Personally, I have much more faith in a low cost trans cooler (flex-a-lite, others) than drilling to achieve cooler trans temps. I'm interested in saving my trans by any means, but I also like heat in the MN winter. Kinda lost on this one.
Thanks!