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**Jason Banks** · 02-21-2015, 12:07 AM

Checkout the MadElectrical.com website. Lots of good info there.

Start on the TECH page but the following articles stand out:
http://www.madelectrical.com/electri...hreewire.shtml

and

http://www.madelectrical.com/electri...elcoremy.shtml

To answer your question "Do I need more amperage?" - We have no idea how many amps you were getting from the 1 wire alternator. If you set it back up to work with an external regulator and 42 amp alternator your probably going to notice a difference. I know going from a 42am to a 63 amp 10si makes a difference. That would be my recommendation.

I would get this:

http://www.amazon.com/dp/B001KR2GVI/ref=wl_it_dp_o... and straighten out the wiring so it would work. There is a wiring diagram for these trucks out there.(http://67-72chevytrucks.com/vboard/showthread.php?t=185665). So..if you can get back to stock...you can easily rewire to work with a 10si.

02-21-2015, 12:07 AM	#4
Jason Banks Senior Member Join Date: Dec 1999 Location: TX Posts: 1,670	Re: Alternator questions Checkout the MadElectrical.com website. Lots of good info there. Start on the TECH page but the following articles stand out: http://www.madelectrical.com/electri...hreewire.shtml and http://www.madelectrical.com/electri...elcoremy.shtml To answer your question "Do I need more amperage?" - We have no idea how many amps you were getting from the 1 wire alternator. If you set it back up to work with an external regulator and 42 amp alternator your probably going to notice a difference. I know going from a 42am to a 63 amp 10si makes a difference. That would be my recommendation. I would get this: http://www.amazon.com/dp/B001KR2GVI/ref=wl_it_dp_o... and straighten out the wiring so it would work. There is a wiring diagram for these trucks out there.(http://67-72chevytrucks.com/vboard/showthread.php?t=185665). So..if you can get back to stock...you can easily rewire to work with a 10si.