Rubber squeaking sound when breaking

[tempfixit]

98 Windstar 251K

I recently replaced wheel bearing on Front driver side, the noise was present before replacement.

When I step on the brakes I hear a squeaking sound like a rubber bushing squeaking, also it changes as the wheels turn. I have also cleaned the brake rotor but have not had it turned for being warped, could this be the piston seal in the caliper or pins.

Any suggestions greatly appreciated.

[tomj76]

It might be the anti-sway bushings.