When you say clunks repeatedly when turning left, are you meaning everytime you turn left it clunks once or when you turn it clunks multiple times?.....Also, how far left are you turning before the clunking starts?
If it is clunking just once, I would look at the condition/orientation of your drag links and associated hardware first.
If it is clunking just once, I would look at the condition/orientation of your drag links and associated hardware first.