Hi, just another quickie, I have been running a fan assisted trans cooler for about a year now on the 89' Burb with the "recommended" setup (keep trans cooler lines going thru radiator then cooler and back to trans) but I now have questions.... I understand, and have read many posts about keeping the trans hooked up to the radiator for initial warmup but I am assuming that that brass cylinder in the radiator (built-in trans cooler/warmer) doesn't cool anything when the engine is up to full temp. Quandry: If I am trying to keep the trans temp as close to 160 as possible (also have a temp gague on the return line) and the engine is running at a consistent 190 -220 why would I want to have the trans cooler lines running thru the radiator? This is important to me as I am an Arizona guy and with temps cracking 113 cooling is a HIGH priority. FYI: I also added a Deralli trans pan with cooling tubes. Thanks for any assistance.