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#1 |
Registered User
Join Date: Mar 2014
Location: MD/VA/PA Or Inbetween
Posts: 413
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Firewall electrical plug pin-out diagram?
I need some info on what the wires to the firewall plugs are doing.
The large connector by the brake master melted on mine so I am just going to run the wires through a grommet. Also looking to sub in a blade fuse block - so any information on which one would be awesome. I didn't find anything in a search but if this has been covered so sorry - just let me know where. |
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#2 |
Moderator
![]() ![]() Join Date: Aug 2011
Location: China Spring, TX
Posts: 7,280
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Re: Firewall electrical plug pin-out diagram?
You should be able to use this:
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__________________
Master Chief, US Navy, Retired 1964 C10 Step-side Short Bed - In Progress 2009 2500HD Duramax LTZ 1948 GMC Panel 1956 Big Window Stepside 1953 5 Window Chevy Stepside 1932 Coupe New Seat Foam for Bench Seats? |
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#3 |
One foot in front of the other
![]() Join Date: Aug 2008
Location: Parrottsville, TN
Posts: 5,440
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Re: Firewall electrical plug pin-out diagram?
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#4 |
Senior Member
![]() Join Date: Jan 2011
Location: Hayes Va
Posts: 4,569
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Re: Firewall electrical plug pin-out diagram?
If the harness is that bad and you want a new fuse block I would put a new harness in the truck. I did it in my 65 after trying to fix what I had to no avail. Every time I went to work on the truck something else would not work. I went with american auto wire in mine and would highly recommend them.
Jimmy
__________________
60 to 66 Chevy and GMC window decals http://67-72chevytrucks.com/vboard/s...d.php?t=661131 Good friends, good food and a hotrod what else do you need? 1966 BBW long fleet Daily driver 1965 BBW short fleet Sold and going to a good home 1965 Suburban 2003 3500 Duramax 2005 Ultra Classic |
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#5 | |
Registered User
Join Date: Mar 2014
Location: MD/VA/PA Or Inbetween
Posts: 413
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Re: Firewall electrical plug pin-out diagram?
Quote:
If I wanted to keep the large firewall connector that is by master cylinder would there be a source for a replacement? |
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#6 | |
Registered User
Join Date: Nov 2009
Location: Sherman, ME
Posts: 2,359
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Re: Firewall electrical plug pin-out diagram?
Quote:
So the only other option would be to find a junk harness that still has those connectors intact. Extract the old terminals/wires, clean up the plastic connector shells, crimp new terminals onto your wires, and insert them into the appropriate cavities. |
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#7 | |
Moderator
![]() ![]() Join Date: Aug 2011
Location: China Spring, TX
Posts: 7,280
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Re: Firewall electrical plug pin-out diagram?
Quote:
http://www.ebay.com/itm/391131380023...%3AMEBIDX%3AIT
__________________
Master Chief, US Navy, Retired 1964 C10 Step-side Short Bed - In Progress 2009 2500HD Duramax LTZ 1948 GMC Panel 1956 Big Window Stepside 1953 5 Window Chevy Stepside 1932 Coupe New Seat Foam for Bench Seats? |
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#8 |
Registered User
Join Date: Jun 2012
Location: cleawater florida
Posts: 246
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Re: Firewall electrical plug pin-out diagram?
just went thru what pg signs did. highly recommend buying new harness.just got it from mcb matt. good price high quality.
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#9 |
Moderator
![]() ![]() Join Date: Aug 2011
Location: China Spring, TX
Posts: 7,280
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Re: Firewall electrical plug pin-out diagram?
Does the American Autowire kit come with the firewall connector like ours? What is the kit number?
__________________
Master Chief, US Navy, Retired 1964 C10 Step-side Short Bed - In Progress 2009 2500HD Duramax LTZ 1948 GMC Panel 1956 Big Window Stepside 1953 5 Window Chevy Stepside 1932 Coupe New Seat Foam for Bench Seats? |
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#10 |
Registered User
Join Date: Mar 2014
Location: MD/VA/PA Or Inbetween
Posts: 413
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Re: Firewall electrical plug pin-out diagram?
Thanks guys - so I checked the harness I have and its actually great. Really good.
So here is the next issue: since I no longer need the voltage regulator, or anything distributor/coil related, what do I hook up to get 12V to the harness. Can I run the 12V Red wire direct from the battery to the wirewall connector instead of to the horn relay first? My 1 wire alternator doesn't need to sample from the horn relay so I figure it would make most sense to send 12V straight through the red wire to the firewall connector on the driver side near the master? Last edited by BigSix; 01-10-2016 at 08:42 PM. |
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