You are correct my manual shows it for c body not b body ,but i have 2 vacum hoses coming out of gromelet in firewall ,one is short whitch goes to intake for vacum ,i have another vacum hoses that is long enough to go in front of radiator ,can,t remember where it went ,car has electric pump w/d washer ,so i know its not this hoses ,its a vacum hose and it has me stumped ,it sure looks like it went to a vacum pod in front of radiator or under battery tray ,i am short on vacum to run vacum operated doors on heaster /AC etc ,i been fighting blower motor problems ,finally got this lined out ,bad controller and switch resistor ,any ideas A/C car 69 B body thanks