7-Inch Chrome Dual Power Booster with 1-1/8 Inch Bore Master Cylinder with Chrome Lid and Side Mount Valve for GM AFX

Upgrade your GM AFX braking system with this 7" dual diaphragm chrome-plated power brake booster and master cylinder combo. Each component is meticulously hand-polished before a chrome finish is applied, ensuring a top-quality appearance. This power booster is designed to mount directly to your factory firewall, providing a seamless upgrade. The kit includes a new 1-1/8" bore master cylinder with a chrome lid and a side mount proportioning valve, all equipped to work with 4-wheel disc brake applications.

Chrome GM AFX 7 Inch Dual Diaphragm Power Brake Booster Kit Key Highlights:

• 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: Chrome


• 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 adds this warning to their products.