So your saying I should let the trans cook cause it will shift like nuts if towing and going over any grades? I shut off OD if I forsee any grades, if its flat no reason to shut it off, but if there are alot of hills and mountain passes, shutting it off means the trans wont search for the gears over and over-thereby cooking the trans, even a trans cooler wont do much good.


1996 T100, Mickey Thomson Classics, Bridgestone Dueler AT 265/75/16, custom offroad KC's.