so... was driving my 66 coupe to work... got to the end of the block and pressed the brakes and i heard a clank clank clank (similar to the sound of a bad cvc joint on a fwd). i was not turning. pulled the wheel and drum off... no bad bushings... nothing wrong with the brakes... cant see any obvious problems

any help is greatly appreciated

 

ball joint is what it sounds like

 

Yep...its a ball joint gone bad. Replace both uppers.