Re: Very Firm Brake Pedal
Another possibility is you may need to adjust the length of the push rod between the master cylinder and the booster. On my 72 this rod is threaded and can be adjusted. If it's too long you could have too little free play, and a hard peddle, and just depressing the peddle slightly causes the brakes to make contact. If too long the MS will not release the fluid pressure causing the brake to stay partly engaged.
Gary
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