From what I can remember...bleed the brakes, use a socket to remove two nuts attaching it to the brake booster, and then use a wrench two loosen nuts holding the brake lines to the bottom of the cylinder. Pretty sure thats all.
you gotta bench bleed a master cyl befor putting it on otherwise you'll be azz deep in a four hour bleed job. to bench bleed, find two peices of hose to fit on the outlets of the m/c and loop those hoses back into the reservoir, which should be half full of fluid. place the m/c into a vice and push the plunger in with the plastic end of a screwdriver or other suitable device that will not gouge the plunger. do this repeatedly until all air is removed, now insall the m/c and bleed the brakes in the normal fashion.