I have a 2007 Armada LE with the tow package. Recently after about 45 minutes of driving the temperature gauge will go to hot ... if you put it in park the temp will go down to regular cool. Drive another 10-15 minutes back to hot... always cool in park tho I've recently changed the fluid and filter (type s) same issue... no issues with driving, no slipping, no hard shifts... just high temperatures! Is this thr beginning of the end for this transmission? Anyone with this similar issue found a remedy for it???