Final answer:
Mounted in the treddle position means that the brake booster and master cylinder are positioned under the floor of a 1956 Chevy Bel Air, which is different from modern vehicles where these parts are usually firewall-mounted.
Step-by-step explanation:
When the brake booster and master cylinder are mounted in the treddle position on a 1956 Chevy Bel Air, this refers to a setup where these components are positioned under the vehicle's floor, as opposed to being mounted on the firewall under the hood. The 'treddle' or 'treadle' refers to the pedal or lever pressed by the driver's foot to actuate the brakes. This configuration was common in vehicles of that era and is considered more old-fashioned compared to modern vehicles where the master cylinder and brake booster are typically firewall-mounted for easier accessibility and maintenance. Understanding this setup is essential for anyone interested in classic car restoration or maintenance.
The brake booster is a device that uses engine vacuum pressure to multiply the force applied to the brake pedal, making it easier for the driver to apply the brakes. The master cylinder is responsible for converting the force from the brake pedal into hydraulic pressure, which then actuates the brake calipers or wheel cylinders.
By mounting the brake booster and master cylinder in the treddle position, the braking system is more efficient and effective. When the driver presses the brake pedal, the force is multiplied by the brake booster, resulting in enhanced braking power. This configuration is commonly used in modern vehicles to provide better braking performance.