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#1 |
Registered User
Join Date: Nov 2008
Location: kannapolis, nc
Posts: 524
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flat tow wiring question
I'm wanting to flat tow my 64 GMC. Will it hurt anything to splice into the wires at the firewall? All the kits I see are running new wires back. No, I'm not buying a kit. Was looking at them for reference
Thanks
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2000 c3500 utility bed 7.4l 5sp manual old body style. Cab and chassis 1964 GMC K10 383cu in/sm465/twin stick np205 1965 Chevy C60 |
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#2 |
Registered User
Join Date: Dec 2017
Location: Elkhart, Texas
Posts: 1,701
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Re: flat tow wiring question
I wouldn't recommend "splicing into" the wiring harness.. I suggest you buy a trailer wiring kit that includes the lights. Fasten the harness along the side of the truck and fasten (clamp, bolt, zip tie) the lights to the rear bumper.. Plug the tow harness into a trailer receptacle on the rear of the towing vehicle, just as you would if towing a trailer.
I'll add this as an after-thought. Disconnect the driveshaft from the differential or you'll wind up with a damaged transmission. |
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#3 |
Senior Member
![]() Join Date: Dec 2009
Location: TN.
Posts: 8,101
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Re: flat tow wiring question
Harbor Freight Tow light kit $35.oo + tax
Link: https://www.harborfreight.com/automo...kit-64282.html
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________________________________________________________________________________________ ____________________________________________ 84 Chevy K-20 63 Impala (my high school car) http://67-72chevytrucks.com/vboard/s...Crew Cab Build |
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#4 |
Post Whore
![]() ![]() Join Date: May 2015
Location: Alabama
Posts: 14,639
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Re: flat tow wiring question
And if you don't mind spending more, they also have wireless tow lights
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Mongo...aka Greg RIP Dad RIP Jesse 1981 C30 LQ9 NV4500..http://67-72chevytrucks.com/vboard/s...d.php?t=753598 Mongos AD- LS3 TR6060...http://67-72chevytrucks.com/vboard/s...34#post8522334 Columbus..the 1957 IH 4x4...http://67-72chevytrucks.com/vboard/s...63#post8082563 2023 Chevy Z71..daily driver |
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#5 | |
Senior Member
![]() Join Date: Dec 2009
Location: TN.
Posts: 8,101
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Re: flat tow wiring question
Quote:
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__________________
________________________________________________________________________________________ ____________________________________________ 84 Chevy K-20 63 Impala (my high school car) http://67-72chevytrucks.com/vboard/s...Crew Cab Build |
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#6 |
Registered User
Join Date: Nov 2008
Location: kannapolis, nc
Posts: 524
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Re: flat tow wiring question
I’d be worried about losing them. Like the idea though
__________________
2000 c3500 utility bed 7.4l 5sp manual old body style. Cab and chassis 1964 GMC K10 383cu in/sm465/twin stick np205 1965 Chevy C60 |
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#7 |
Senior Member
![]() Join Date: Mar 2006
Location: Pittsburgh, PA
Posts: 252
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Re: flat tow wiring question
There is a flat 3wire harness that exits the cab near the trans hump that runs the rear turn signals and running lights. You could pull the plug and connect your “trailer lights” to the rear from there.
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#8 |
Senior Member
![]() Join Date: Jan 2001
Location: Orem, Utah
Posts: 7,912
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Re: flat tow wiring question
When I rewired my Blazer I set it up for flat towing. I have a flat-4 connector that sits on my radiator support. I soldered it in where the wiring harness runs down the firewall to the rear.
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I have sworn upon the altar of God, eternal hostility against every form of tyranny over the mind of man. - Thomas Jefferson |
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