tranny overheated

[Mikie]

here goes! 92 model w/ 5.8 and E4OD tranny I think--push OD on end of gear handle-- push button 4wd--I have had it since Feb. 06. No troubles @ all. Then the fun begins. I went driving on the beach in 4high. Pulled good for bout 10 min. Got out to let some air out of the tires and notices tranny fluid leaking ( from somewhere around the bell housing) BAD!! Let is sit and cool a couple of hrs. Put 5 qts of fluid back in it. Got in and drove off the beach. Stopped to check it when i got on pavement and had very minimal leaking ( size of a dime). Then drove 2 hrs back home w/out any troubles. Working just as it shoud. I have never noticed any leaking untill that day on the beach. Havent noticed any leaking at all since. Any suggestions would be helpful. Thanks.