Brake problem

I did a brake job on my accord. New wheel bearings, pad clips, rotors and pads. Now every time I hit the brake I get a synchronous thump from the passenger side front when I slow down. When I push light its fine, the harder I stomp, the louder it thumps. Took it apart to see what it could be and the brakes seem to be fine, no uneven wear, no scoring in unusual places. The thing that I wanna know is if it could be something else (transmission, steering rack). I replaced the outer tie rods less than a year ago, the upper ball joints less than a month ago, and the cv axles about a year ago. The passenger side was from a junk yard and the driver side was re manufactured. Bottom line is that it didnt do this before. Im stumped. Anything would be helpful. Thanks.