Knocking on decel (not motor)

[kingkilburn]

I recently replaced my rear calipers(stock) and pads. The brakes work great but now when ever I let off the gas, and more so when applying the brake, I get a knocking sound from the right rear. It sounds similar to when you have the tread separate from the tire but not as loud or violent.

Edit
The brake pedal does not pulse with the knocking. The leads me to believe it isn't a warped rotor.

[kingkilburn]

Well I retorqued the lugs on the rotors and that seemed to fix it. I guess one or both of the rotors was wobbling. :ughd: