Steering wheel vibration at 65 mpr after I had master brake cylinder replaced. I have to pull off to side of road and stop car then start up again and problem stops. Can feel vibration in brake pedal when slowing car to a stop. Vibration seems to be intermittent. Doesn't happen every time I drive at 65 mpr. Car drives ok in local traffic, this problem only happens when driving faster speeds. I replaced tires already.

Did they "turn" your rotors? They may have "improperly" turned your front rotors. This is common and they should correct this where you had the work done.

You have a problem with either your rotors or brake calipers

Check balance of tires; if ok, have rotors refinished or replaced; most likely warped rotors if you can feel it in the brake pedal when braking

When is the last time you had the front end aligned and have you had any work done to the front end recently? The pulsating in the brake pedal can be caused by several things. Vibration in front end... warped brake rotors to name a couple. do you get the vibration after going over bumps in the road? I recommend that you have someone check out your front end and brake rotors. Good Luck