POWER BOOSTER RMOVAL

I HAVE A 1976 CORVETTE THAT I NEED TO REPLACE THE POWER BOOSTER FOR THE BRAKES, HOW DO I GET TO THE FOUR BOLTS ON THE FIREWALL THAT ARE INSIDE THE CAR

I hope you small hands, a u-joint for your ratchet, and some angled box end wrenches. They are hard to get to but you can get it out.

THANKS!!! You are right we did the ol u joint flex head and open end ratchets but it worked WOW What Brakes Now !!!