[T3] Brakes & Front End

[J. Jonik]

Re/ '71 Sqbk.
Master brake cylinder is apparently bad, though it still stops the car.  But lately, when braking, there's some bumping sounds at each tire revolution as car slows down, and those bumps can be felt in pedal and steering wheel.
Brake pads are all ok, and rotors seem normal.   One tie-rod end, driver side, has slight wiggle.  Ball joints seem all solid.
Diagnosis?   Will replace master cylinder when opportunity arises, but where to look for cause of those bumps?    
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