Brake pedal is really stiff

Go back up and read my post. If the master is the correct diameter, as are the wheel cylinders, it could be a plugged line--which you can easily check by bleeding,

or POOR DRUM SHOE FIT

To repeat. IF THE DRUMS have been turned too far oversize, the shoes will now "in effect" be too small. This means they are only touching in the center of the arc of the shoe, and very little of the shoe surface is doing anything.

Also along this line, the lining--because so little of it has been doing any work stopping the car--will have become glazed and LESS effective

NEW shoes on "overturned" drums WILL NOT FIX THIS

Here's how you "used" to fix this:

Sometimes, local reliners could "shim" brake lining or install oversized lining

You had a grinder called an "arcing machine" that would "arc" the shoes to fit the oversized drums

Nowadays, you probably cannot do this. You will have to get new shoes--or at least sand the glaze off yours--and replace the drums.

Arcing machine picture I found on the www



ALSO if you DID NOT have the drums turned when you replaced the shoes, you can have all sorts of "poor fit" issues:

http://www.autozone.com/autozone/re...= 0900c15280213fb3&subtitle=out-of-round drum