i need a drive shaft for my 1971 it has the 350 auto trans, im having trouble finding a used one.

 

you might want to take measurements cause 70-77 monte carlo, chevelle, malibu might be the same drive shaft.

 

TheMonteMan is right i'm pretty sure. otherwise take a measurement and make some calls to the junk yards and see what they have. other makes/models might have the same one also by chance. keep an eye out on ebay and craigslist too. you would think there would be plenty of those around.