Product Description
Features: 7" ; 55-57 Chevy

Boosters are available in 7" or 8" diameters and fit the Allstar Brake Pedals as well as other aftermarket units. For use with Allstar ALL41010 and ALL 41011 Master Cylinders. The 7" Booster is 3-5/8" Deep, the 8" Booster is 4-1/4" deep.