How do you clear the dash brake warning light after changing the power brake booster on my 1979 ford?

To clear the dash brake warning light after changing the power brake booster on your 1979 Ford, start by ensuring that the brake fluid level is correct and the brake system is properly bled of air. If the light remains illuminated, you may need to disconnect the vehicle's battery for a few minutes to reset the warning system. Reconnect the battery, and the brake warning light should turn off if everything is functioning correctly. If the light persists, check for any additional issues in the brake system or consult a professional mechanic.