Any one installed an external oil filter in one of those transmissions? Dropped the pan on my 2015 sierra with only 35k miles had a nice coat of metal glitter built up all on the inside, magnet was pretty loaded as well. Nothing out of the ordinary, but still, makes one wonder if an external filter would be a good addition. Plenty of room to plumb one some place just not sure if tapping into a cooler line is a good idea.