Remove the driver's side under dash panel, then remove the clip that hold the booter to the brake pedal and the 4 nut's that hold the booster to the fire wall. Next remove the 2 bolts that hold the master cylinder to the booster, pull the master cylinder out of the way nice and easy(so it will go back into place after you install the new booster). Unplug the sensor's and remove the booster vacuum line.
Then fenagal the booster out and reinstall in the reverse order.