Dodge Caravan Transmission Pan Leak

I Am Palnning To Do Transmission Fluid Exchange On My 2004 Dodge Grand Caravan And Would Like To Know If I Have To Put Some Gasket Maker...

Took It To Transmission Shop They Said Shift Box On Side Of Tranny Is Leaking,they Also Dropped The Pan And Said Tranny Is Gone, Too Much...

Hand Me Down Van, Runs Well, No Engine Lights Etc On But The Van (i'm Assuming It's The Trans) Makes A Strange Sound After Shifting Up Or...