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Discussion Starter · #1 ·
Tons of info here.......I've learned alot just reading old posts in this forum. I have a simple ground question.

How big does the wire need to be for the run to the firewall from the battery? I already have it grounded to the chassis, I just wanted to run a dedicated cable to the firewall for a common ground bus. Does it have to be 2 guage, or can I get away with anything smaller?

Thanks in advance
 

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2ga works fine and should be more than large enough. However when you are checking around for pricing, 2 ga is a bastard size (I think just Ford diesel pickups), so you might want to price 1 ga and even 1/0 sizes as well. I have seen several times where they are actually cheaper than 2ga. Bigger is better when it comes to wire, though it will also add a few pounds to the build, so there is a downside.
 
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