Tuff Stuff 2132NB Master Cylinder and 11-Inch Dual Diaphragm Booster Kit for 1970–1992 GM Full-Size Trucks

Upgrade the braking performance of your classic GM truck with the Tuff Stuff 2132NB master cylinder and booster kit. Designed for 1970–1992 GM full-size trucks, this complete assembly combines an 11-inch dual diaphragm power booster with a master cylinder featuring a 1.125-inch bore and dual integral reservoir. It is engineered as a practical replacement for worn or outdated original equipment while supporting dependable, responsive brake operation.
The dual diaphragm booster provides enhanced power assist in a compact configuration, helping reduce pedal effort and improve braking control. The master cylinder’s dual integral reservoir supports separate hydraulic circuits for added braking-system reliability, while the steel construction is finished in durable black paint for a clean appearance and lasting protection in the engine compartment. The kit format simplifies installation by supplying the primary braking components together in one application-focused package.
Feature: Application-specific design for 1970–1992 GM full-size trucks
Feature: 1.125-inch master cylinder bore for compatible hydraulic systems
Feature: 11-inch outside-diameter dual diaphragm power booster
Feature: Dual integral reservoir master cylinder
Feature: Durable steel construction with black painted finish
Feature: Kit includes the master cylinder and power booster assembly
Feature: Intended to help improve pedal feel and braking assistance
Before installation, confirm vehicle compatibility, brake system configuration, mounting arrangement, and hydraulic connections. Professional installation is recommended, along with a complete inspection of brake lines, fittings, pedal linkage, and related components. Proper bleeding and adjustment are essential for safe operation. The Tuff Stuff 2132NB delivers a cohesive braking upgrade for compatible GM full-size truck applications without requiring separate selection of a booster and master cylinder.

Features:

• Application-specific design for 1970–1992 GM full-size trucks

• 1.125-inch master cylinder bore

• 11-inch dual diaphragm power booster

• Dual integral reservoir master cylinder

• Steel construction with black painted finish

• Complete master cylinder and booster kit

• Designed to support reduced pedal effort and responsive braking