Firewall grommet

[beastie_3]

Im having trouble finding a firewall grommet. It is for the lower hole next to the booster, 1.25in. I dont know what went there before, but now I have a couple wires running through it. I would like a solid rubber plug where I can make a small hole and feed the wires. Ive looked at all the hardware and auto stores. All I find online are those with pre made holes or solid plugs that are too small.

[bake74]

     Here is one I have used for work, they seem to have a wide variety.  You will probably have to call them.  They might have a distributer near you even.  I know they have 1.25" solid plugs.

          http://www.midatlanticrubber.com/

[beastie_3]

ya ive been looking at sites like that. they all need each dimension. anyone know what gauge the firewall is? 18?