• Powerful Brake Assist – Dual-diaphragm 9-inch design delivers increased vacuum assist for stronger, more confident braking performance on upgraded or custom applications., • Delco-Style Construction – Built as an exact reproduction of the original Delco booster with a short threaded rod for proper fitment in compatible firewall and pedal setups., • Durable Black Finish – Features a sleek black exterior that resists wear and blends cleanly into engine bays ranging from factory-style restorations to custom builds., • GM Firewall Compatibility – Designed with the common GM 3-3/8 inch square firewall bolt pattern for straightforward installation on many GM-based vehicles., • Universal Use with Accessories – Functions as a universal booster when paired with pedal rod PRE5564 (910-31520) and c.
