hi i have a camry 1993 model 2.2 automatic.I have just had the auto transmission oil drained new metal filter installed(there was a little bit of metal shavings in old metal screen)there was also slight bit of grey sludge on bottom of auto sump.Refilled with decron 2 fluid .new cork gasket .This sump has 14 or 15 bolts the question is the differntal fluid is it seperate or does it flow into the auto box.From what i can gather online there is 2 types of camry auto boxes (determined by number of bolts holding auto box pan )the one type you must drain diff seperate and refill seperate my mechanic said mine 14 or 15 bolt one runs into auto box does not need to be drained and refilled seperate .The car has over 500000 kilometers on it runs smooth changes smooth but i do a lot of towing help please