Buick Roadmaster Accelerator Pump Diaphragms

Power brake boosters offer lower pedal effort and better braking characteristics, but which one is right for your hot rod, muscle car, or truck? We take the guesswork out of that question with our latest buyer's guide.

Should you use single or dual diaphragm brake boosters? Read our guide to learn which is best for your four wheel drum or four wheel disc brake system.

Follow this visual guide on installing spacer rings for Buick style finned brake drums to help center the drum on the hub. Learn some tips on using old and new parts for the installation.