the brake booster is located between the master cylinder and the brake pedal. Inside the fire wall. I found it for $85 but i don,t know how to replace it without ripping out the dash. Found a shop that will do the work for $250.
Lift the car on a vehicle jack, remove the tire and set it aside, remove the brake shoe/caliper, remove the brake pad. Dispose of the old brake pad, put in the new brake pad, replace the brake shoe/caliper, put the tire back on the car, and lower the car to the ground.
Remove the cowel,wiper blades and wiper motor remove master cylinder only and move off the side ,do not unhook brake lines or bend or kink them from under the dash remove the arm that hooks to the brake pedel and 4 brake booster bolts and wa-la its out