DSE Brake Booster & Master Cylinder Kit (050109DS) - 1968-1972 GM A-Body
Bring a more modern, performance-oriented brake pedal feel to your classic GM A-Body with the Detroit Speed Brake Booster & Master Cylinder Kit. Part number 050109DS is engineered for 1968-1972 GM A-Body applications and combines the major power brake components into a matched, direct bolt-on package. Detroit Speed pairs a compact 9 inch dual-diaphragm power brake booster with a 1 inch bore aluminum master cylinder and reservoir, creating a clean solution for upgrading the braking system without piecing together the primary components separately.
Detroit Speed designed 050109DS to work with factory or aftermarket brake systems, making it a strong choice for everything from a carefully restored street car to a serious pro-touring build. The kit includes the 9 inch dual-diaphragm booster, cast-aluminum master cylinder with reservoir, mounting bracket, and master cylinder fittings. The booster requires a minimum of 10-12 inches of mercury engine vacuum for proper operation. Detroit Speed also notes that vehicles equipped with a Big Block Chevy and tall valve covers may experience clearance issues, so engine and valve cover configuration should be checked before ordering.
Specifications
- Manufacturer: Detroit Speed
- Part Number: 050109DS
- Product Type: Brake Booster and Master Cylinder Kit
- Application: 1968-1972 GM A-Body
- Brake Booster Diameter: 9 inches
- Brake Booster Type: Dual diaphragm
- Master Cylinder Bore Size: 1 inch
- Master Cylinder Material: Aluminum
- Master Cylinder Reservoir: Included
- Fittings Included: Yes
- Adapter Size A: M12 x 1.0 inverted flare male
- Adapter Size B: M12 x 1.0 inverted flare male
- Minimum Vacuum Requirement: 10-12 inches of mercury
- Installation Type: Direct bolt-on
- Brake System Compatibility: Factory or aftermarket brake systems
Features
- Application-specific brake booster and master cylinder package for 1968-1972 GM A-Body vehicles
- Designed to provide a late-model performance brake pedal feel
- Compact 9 inch dual-diaphragm power brake booster
- 1 inch bore cast-aluminum master cylinder
- Master cylinder reservoir included
- Designed to work with factory or aftermarket brake systems
- Direct bolt-on design for compatible GM A-Body applications
- Mounting bracket included
- Master cylinder fittings included
- M12 x 1.0 inverted flare male adapter configuration
- Matched booster and master cylinder package simplifies a classic A-Body power brake upgrade
- Suitable for restoration, performance street, pro-touring, autocross, and other performance-oriented builds
Fitment
- 1968 GM A-Body
- 1969 GM A-Body
- 1970 GM A-Body
- 1971 GM A-Body
- 1972 GM A-Body
Fitment Note: Detroit Speed 050109DS is designed for 1968-1972 GM A-Body applications. The power brake booster requires a minimum of 10-12 inches of mercury engine vacuum for proper operation. Detroit Speed also notes that clearance issues may occur with Big Block Chevy engines equipped with tall valve covers. Verify engine vacuum and available valve cover clearance before ordering.
FAQs
What is included with Detroit Speed 050109DS?
Detroit Speed 050109DS includes a 9 inch dual-diaphragm brake booster, 1 inch bore cast-aluminum master cylinder with reservoir, mounting bracket, and master cylinder fittings for a matched power brake upgrade.
How much engine vacuum does Detroit Speed 050109DS require?
Detroit Speed specifies a minimum vacuum requirement of 10-12 inches of mercury. Available engine vacuum should be verified before installation, particularly with an aggressive aftermarket camshaft.
Are there any engine clearance concerns with 050109DS?
Yes. Detroit Speed specifically notes that clearance issues may occur on vehicles equipped with a Big Block Chevy and tall valve covers. Check the engine and valve cover configuration before ordering.
Why Buy Detroit Speed from Beefcake Racing?
Beefcake Racing is your source for Detroit Speed brake, suspension, and chassis components for classic muscle cars, performance street builds, pro-touring combinations, autocross cars, and track-focused vehicles. Matching the brake booster and master cylinder to your vehicle, available engine vacuum, and overall braking system is important for getting the pedal feel and braking response your build demands. Questions about Detroit Speed 050109DS or your GM A-Body brake setup? Email sales@beefcakeracing.com or call 1-855-827-7223.
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