1955-59 Chevy, GMC Truck, Firewall Mount Hydropower Hydraulic Brake Assist with POL or Wilwood Master Cylinder, Finish Type:Polished (Wilwood Only) 30 Spline count

30 Spline count

These components are a must when upgrading to disc brakes on your pre-73 A-body

Product fits

This kit works with many aftermarket 14" wheels and 14" rally sport wheels

1955-59 Chevy, GMC Truck, Firewall Mount Hydropower Hydraulic Brake Assist with POL or Wilwood Master Cylinder, Finish Type:Polished (Wilwood Only) 30 Spline countOur Hydropower hydraulic brake assist power booster fits 1955 59 2nd series Chevy and GMC trucks and generates up to 1800psi of line pressure to the brake calipers. It is fitted with a POL or Wilwood master cylinder and an adjustable proportioning valve. This kit is powered by hydraulic line pressure from the power steering pump. Firewall and valve cover clearance is equivalent to a 7" diameter vacuum booster. The firewall brackets are correct for 55