Ground on Rear Headlights

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medxsa13

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Mar 15, 2023
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Location
UK
First Name
Meg
Truck Year
1977
Truck Model
C10
Engine Size
350
Hi i’m trying to sort the wiring on my ‘76, focusing on the lights at the moment. The rear lights i’ve connected as they weren’t connected before but i’m confused where the earth is meant to be? i can see it on the wiring diagram but there isn’t anything coming off the back of the light on either side. On the drivers side there’s a cut earth connected to the frame and just dangling so i’m assuming it had one at some point but can’t figure out where it should go
 

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Woods77K10

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Aug 2, 2023
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Location
Huntingdon
First Name
Gina
Truck Year
1977
Truck Model
Chevy K10
Engine Size
V8
On mine, when I replaced the rear lights and a harness, the harness had a ground but there was also a ground from the firewall to the drivers rear taillight area. I have the new witing harness, fusebox etc but haven't researched enough or have any education on wiring to start this part of the build. I did start identifying the wires...I don't know if that ground is supposed to be there or not but will soon figure it out.
 

Ricko1966

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Location
kansas
First Name
Rick
Truck Year
1975
Truck Model
c20
Engine Size
350
Ground the bed to the frame,the lights ground through the metal rim of the socket,but the bed has to be grounded.
 

medxsa13

Junior Member
Joined
Mar 15, 2023
Posts
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Location
UK
First Name
Meg
Truck Year
1977
Truck Model
C10
Engine Size
350
Ground the bed to the frame,the lights ground through the metal rim of the socket,but the bed has to be grounded.
ahhh ok thank you, that explains the random earth hanging from the frame! will earth it to the bed tomorrow
 

brooksman9

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Sep 26, 2021
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Location
Olive Branch, MS
First Name
Patrick
Truck Year
1986
Truck Model
Silverado & Custom Deluxe
Engine Size
350 & 305
Just went through similar on my K10. Weird tail light issues. Added a ground wire and viola!
 

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