1967-1970 Mopar B-body Charger, Coronet, Roadrunner, GTX & 1967-1974 Mopar A-body, Brake Distribution Valve A/ B-Body Brake distribution valve. This kit includes the valve and mounting bracket. This mounts below the master cylinder on all drum and disc brake cars. B-Body Note: Used with BLK247 & PR104B on Disc Brake Cars A-Body Note: Used with PR104B on Disc Brake Cars This is the valve that was on your Mopar below the master cylinder.