Getting through the Firewall

[USMC_315]

I'm trying to figure out how to get through the firewall for my coax to run to my antenna but cannot find a good place to go through the firewall. How have you guys done this job? I don't really feel comfortable drilling through the metal and not to keen on the idea of running through the door jam like I was recommended. Any help is greatly appreciated as always.

 

[rascole]

I used the location where the clutch pedal would mount. Perfect clear spot on both side of the firewall. Cord grip fitting with o'rings on both sides and a dab of silicone are leak free. Here is my post.
http://www.hummer4x4offroad.com/forum/showthread.php?6175-Firewall-fitting-Part-2

 

[JPaul]

I used the same spot as rascole but I used the Daystar firewall boot, it'll let you keep adding more wires later on without any fuss: http://www.hummer4x4offroad.com/for...-H3-Base-build&p=191674&viewfull=1#post191674

I've never had water come in from there. If you're worried about anything seeping in then fill the gaps with dielectric grease. But frankly if water is high up enough to get in through there then it's already too late as your H3 is now self-identifying as a sinking boat and you've got water coming in from a whole lot of other spots. That location is pretty well protected from water, even when doing a water crossing.

 

[CaseyS]

Push it in through the factory grommet near the ECU. Pull the grommet back up the wiring harness and it makes things a bit easier.

I have my transmission controller run on the passenger side one and my rear locker through the driver side one.