Tuff Stuff 2132NB 11-Inch Dual Diaphragm Booster for 1973-1993 GM Trucks - High-Performance Brake Booster Upgrade for Improved Stopping Power | Ideal for Off-Roading, Towing & Heavy-Duty Use

Specific fit applications available in beautiful chrome plated, gold zinc or black powder coated finishes. 1" and 1-1/8" master cylinder bores work with disc/disc, disc/drum, and drum/drum brake set-ups. Single and dual diaphragm styles available in 7", 8", 9" and 11" diameters to fit virtually all hot rods, customs and muscle cars. 100% all new components - and every unit is vacuum tested to insure reliability. Works with many stock mounting brackets and Tuff Stuff universal brackets.