Pairing a properly sized vacuum booster with the right master cylinder is critical for consistent pedal feel on a four-wheel disc brake conversion. This combo kit takes the guesswork out of matching booster and master cylinder bore size on classic GM A, F and X-Body cars.

The Right Stuff Detailing B81315672 Booster and Master Cylinder Combo

• An 8 in. dual-diaphragm vacuum booster provides strong, consistent pedal assist for disc/disc brake setups.
• The 1 in. bore aluminum master cylinder is sized to match the included booster for correct pedal travel.
• A mounting bracket and brake pedal rod extension are included for a complete installation.
• Finished in black to blend in under the hood on a driver-quality restoration.