This is a new Firewall Mount Power Brake Conversion Kit with Black 8" Dual Diaphragm Power Brake Booster and Black Ball Milled Flat Top Master Cylinder for 1966-77 Ford Bronco.  Part # GH3510-466778000BLK 

Features:

  • 8" Black Diaphragm Brake Booster
  • Black 1" Bore Ball Milled Flat Top Master Cylinder
  • Powder coated black booster bracket
  • Designed for use without modifying your Bronco and to allow clearance when used with fiberglass and low profile hoods.
  • Includes push rod, cotter pin, clevis pin, and firewall dust boot