7-Inch Zinc Dual Power Booster with 1-1/8 Inch Bore Master Cylinder for GM AFX

7-Inch Dual Diaphragm Zinc-Plated Power Brake Booster and Master Cylinder Combo. This 7" power booster is hand-polished before receiving a durable yellow zinc finish for long-lasting corrosion resistance and a high-quality appearance. Designed to mount directly to your factory firewall, this power brake booster delivers reliable performance and straightforward installation. Also included in this kit is a new 1-1/8" bore master cylinder engineered to work with front disc/rear drum or 4-wheel disc brake applications. GM AFX 7-Inch Dual Diaphragm Power Brake Booster Kit Key Features: Master Cylinder Bore Size: 1-1/8 in Bowl Design: Dual Bowl Master Cylinder Material: Cast Iron Master Cylinder Finish: Natural Reservoir Included: Yes Reservoir Material: Cast Iron Master Cylinder Cap Included: Yes Brake Booster Type: Dual Diaphragm Brake Booster Diameter (in): 7 in. Brake Booster Material: Steel Brake Booster Finish: Zinc Brake Pedal Rod Extension Included: Yes Mounting Hardware Included: Uses Original Quantity: Kit LEED Brakes Pushrod Measuring Tool PSA Video All LEED Brakes booster and master cylinder assemblies are preset before shipping. Watch this short video to learn how to properly measure pushrod depth and how to quickly test your measuring tool for accuracy. Click here to learn more about why LEED Brakes has added this warning to their products.