Anyone familiar with these type of rear camber plates?

So I bought these rear camber plates since I'm going to run a decent amount of camber in the back and my stock one are toast.

But since I installed these the rear shocked are banging and pounding like maniacs. I double checked everything was tight and secure and it is, so I don't know what is causing the noise.

I have the same 'type' of camber plates in the front with no issues at all. I did not add a new gasket to the rear plates but I hardly believe that would make a difference.

http://ift.tt/2rR87o7

http://ift.tt/2sPEJvO

Anyone familiar with these type of rear camber plates?