Drive Train Axles Bearings problem
1995 Other Cadillac Models V8 Two Wheel Drive Automatic 250000 miles

My car is a Cadillac deville concours,and there is a very bad rattling noise it makes when driving it.It's a clacking and rattling sound,I think it's the bearings but I'm not sure ,so that is my question to you .What do you think that could be,I hope I provided enough info. for you to give me the proper feed back.