flex plate for a 700r4
 

I have a 65 gto with a 400 ci,and a 700r4 transmission.Last year the flex plate went bad so I had it replaced,now 650 miles later it is making the same noise as last year.It was fine and I drove it about 50 miles and the noise got gradually worse so by the time i got home it was a loud rattle.Anyone else with a similar problem.