After a 1500 mi straight run we parked in the driveway and no signs of anything. Yesterday we drove around town approx. 30 miles and parked in the same driveway. Now there is a trans fluid leak on the driveway approx. 12oz - 16 oz. I crawled under and couldn't really see the source. Unfortunately, it's not the pan gasquet. The lower part of the dip stick tube may be wet but not sure. I haven't checked the level. Probably for the same reason I haven't checked my 401K lately. I have to have someone do the work as I'm away from home. Any thoughts?
-MC

 

check the breather tube

 

Perhaps inspect the transmission cooler lines?