2002 Caravan radiator problems

I own 2002 Grand CARAVAN Sport 3.3L. For over two years now i'm battling the coolant leak. System was pressurized, checked, radiator was changed 6 TIMES!!! After exchange, after 7 - 8K radiator starts leaking again. Problem seems to be more frequent in wintertime than in summer. It's driving me crazy!!! HELP PLEASE!!!!!:banghead:

HAs radiator leaked at the same location each time. Where does it leak? How many miles?

Yes,near the top,297000

I assume that the body/frame area where radiator leaks has been checked for breaks and such that could cause the leakage. IS it a leak from rubbing or metal movement ? Do you have a pic of leajage location that you can post?? More info you can give us better diagnoses someone can make.