Power brake booster firewall grommet??? Help

[bguild]

Okay so I added my power brake booster.. I didnt even think about it but when i pulled the master cyclinder off the firewall and then ran the rod from the booster through the firewall I know have a large space around the rod for air and whatever to get inside my cab. I looked up in lmc and classic parts for a grommet but didnt see anything that stood out.

Do you guys know what I am missing and where to get it.. Any help in the right direction would be great..

BTW this was a used booster as well so I probably was missing whatever it should have to seal that area up. Thanks in advance.

[john]

Wes has a brake rod boot.
http://www.classicheartbeat.com/rubb...atherstrip.htm

[bguild]

I think that is what I need. I assume the larger side of that fits in the hole on the firewall? Does it mount with the cone side toward the engine or does it go the opposite way towards the cab? Thanks for the help.