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Old 08-13-2020, 11:01 PM   #26
tdangle
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Join Date: Mar 2005
Location: Jurupa Valley, Ca
Posts: 875
Re: Stock alternator to 12 SI alternator

Few months old thread, but exactly what I'm going to do shortly. Should the 12R wire be upgraded to a bigger gauge. I assume 12R stands for 12 gauge, Red. Is there anything special about the wiring to make the amp meter work? Per info I found it looks like 12 gauge will flow 41 amps. Enough for a stock 37 amp alternator.
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Terry

1970 Custom Camper/C20 , GM Crate 350/2004R, Dana 60, factory AC
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