Opinions on grounds needed

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

germando

Member
Joined
Jun 1, 2023
Posts
46
Reaction score
154
Location
dfw texas
First Name
Justin
Truck Year
1973
Truck Model
c1500
Engine Size
454
Evening everyone, just wanted to get some opinions on where I should add some grounds. I have been having some ground related rear brake/signal light issues so when I go through and inspect the grounds in the rear, I want to add some. I have 10 3/4in brass grounding straps to add for this issue. Question where would you guys put em? Gotta get this solved before I install the Dakota digital I ordered

Thanks
G
 

Ricko1966

Full Access Member
Joined
Apr 11, 2017
Posts
5,450
Reaction score
8,687
Location
kansas
First Name
Rick
Truck Year
1975
Truck Model
c20
Engine Size
350
Grounds are simple,anything that has a hot needs a ground. Your engine,body,and chassis should all have a good ground to the battery it can be daisy chained,ground the bed to the frame now almost every piece of metal on that truck is a potential ground location. It won't matter where you ground the lights,the radio,the electric ball scratcher or anything else if it has a ground running to a metal part of the truck it's grounded. And the body,the frame,and the engine block can carry more current than any wires you could ever home run to the battery.
 

Dleslie212

Full Access Member
Joined
Sep 2, 2019
Posts
243
Reaction score
149
Location
Phoenix
First Name
Dustin
Truck Year
1977
Truck Model
K10
Engine Size
5.7L 350
I ended up going the daisy chain method. People here told me it was overkill, but I don't care

I drilled holes in various locations and used 5/26" threaded rods with nuts and washers to attach. Then a battery cable tying each of those lugs together. Anything nearby that needs a ground is terminated with a ring connector and bolted to the grounding lug, whichever lug is closest.

I have one at both driver and passenger side frame rails up front, one at the firewall next to fuse block, one at inside of drivers fender, and another at the frame near the fuel tanks. Grounding straps from the bed to rear lug, and alternator to a front lug

Overkill? Maybe. But I don't care. I used my digital meter to test from grounding lugs to just about anywhere unpainted on the truck and have perfect grounding everywhere now
 

Camar068

Supporting Member
Supporting Member
Joined
Feb 5, 2014
Posts
4,293
Reaction score
3,339
Location
Kentucky
First Name
David
Truck Year
1986
Truck Model
K10/LM7 5.3/4L60e/np208/3.73/32"
Engine Size
10 yrs Air Force
Evening everyone, just wanted to get some opinions on where I should add some grounds. I have been having some ground related rear brake/signal light issues so when I go through and inspect the grounds in the rear, I want to add some. I have 10 3/4in brass grounding straps to add for this issue. Question where would you guys put em? Gotta get this solved before I install the Dakota digital I ordered

Thanks
G
Read up on the "big 3 Upgrade"

Big 3 Upgrade
 

Bextreme04

Full Access Member
Joined
May 13, 2019
Posts
4,439
Reaction score
5,581
Location
Oregon
First Name
Eric
Truck Year
1980
Truck Model
K25
Engine Size
350-4bbl
I ended up going the daisy chain method. People here told me it was overkill, but I don't care

I drilled holes in various locations and used 5/26" threaded rods with nuts and washers to attach. Then a battery cable tying each of those lugs together. Anything nearby that needs a ground is terminated with a ring connector and bolted to the grounding lug, whichever lug is closest.

I have one at both driver and passenger side frame rails up front, one at the firewall next to fuse block, one at inside of drivers fender, and another at the frame near the fuel tanks. Grounding straps from the bed to rear lug, and alternator to a front lug

Overkill? Maybe. But I don't care. I used my digital meter to test from grounding lugs to just about anywhere unpainted on the truck and have perfect grounding everywhere now
Most light harness related ground issues are caused by the socket internally having an issue to the ground cable in my experience. Adding ground connections from body panels to the frame can be helpful, but it is usually due to the socket itself not having a decent ground.
 

Dleslie212

Full Access Member
Joined
Sep 2, 2019
Posts
243
Reaction score
149
Location
Phoenix
First Name
Dustin
Truck Year
1977
Truck Model
K10
Engine Size
5.7L 350
Most light harness related ground issues are caused by the socket internally having an issue to the ground cable in my experience. Adding ground connections from body panels to the frame can be helpful, but it is usually due to the socket itself not having a decent ground.
My socket grounds, both up front and in back, tie together and connect to the nearest grounding lug with a ring terminal
 

Randy and Easton

Full Access Member
Joined
Feb 6, 2021
Posts
900
Reaction score
1,303
Location
North Richland Hills, Texas
First Name
Randy
Truck Year
1976
Truck Model
C-10 LWB
Engine Size
350
@RustyPile will be along shortly with some great advice but here is a great list.

Randy and E
 

Attachments

  • IMG_0708.jpg
    IMG_0708.jpg
    147.3 KB · Views: 47

Bextreme04

Full Access Member
Joined
May 13, 2019
Posts
4,439
Reaction score
5,581
Location
Oregon
First Name
Eric
Truck Year
1980
Truck Model
K25
Engine Size
350-4bbl
My socket grounds, both up front and in back, tie together and connect to the nearest grounding lug with a ring terminal
Yes, and because the amperage is pretty low, they don't need much connection to the bed or core support to be totally fine. All turn signal and headlight issues I've had on two different squares were able to be tracked down to the way the ground wire itself was connected into the socket. The connection looked just fine visually, but it was internally loose, corroded, or broken and they aren't really repairable. I ended up having to replace the suspect socket and have never had an issue since. There is only one ground in the rear for the entire taillight harness. I have an additional 10 gauge ground back there for the trailer brake harness that ties together and goes directly to the frame with a star washer. The front harness has been modified to use the headlight relay add on harness and there are additional 10 gauge grounds from the core support to the batteries. I have 00 AWG from both batteries to the engine and the engine to the frame.
 

DoubleDingo

Full Access Member
Joined
Jul 3, 2012
Posts
11,250
Reaction score
17,177
Location
Right where I am
First Name
Bagoomba
Truck Year
1981
Truck Model
81-C20 Silverado Camper Special-TH400-4.10s
Engine Size
Carb'ed Vortec 350
All great recommendations
 

brooksman9

Full Access Member
Joined
Sep 26, 2021
Posts
555
Reaction score
1,601
Location
Olive Branch, MS
First Name
Patrick
Truck Year
1986
Truck Model
Silverado & Custom Deluxe
Engine Size
350 & 305
Had a rear light issue on one of mine and ran a wire from the bed ground to the frame at the DS taillight. Fixed that right up.
 

germando

Member
Joined
Jun 1, 2023
Posts
46
Reaction score
154
Location
dfw texas
First Name
Justin
Truck Year
1973
Truck Model
c1500
Engine Size
454
I suspect it is where the rear lights ground to the bed or where the bed is grounded to the frame. The sockets are all new as I installed an aaw full harness.

G
 

germando

Member
Joined
Jun 1, 2023
Posts
46
Reaction score
154
Location
dfw texas
First Name
Justin
Truck Year
1973
Truck Model
c1500
Engine Size
454
I will follow the big3 and do those as well, but for the back I am thinking adding a ground strap on each side from where the lights ground to the body and chain it to the frame hopefully it will fix this issue

G
 

MikeB

Full Access Member
Joined
Apr 4, 2014
Posts
1,775
Reaction score
1,004
Location
North Texas
First Name
Mike
Truck Year
1969
Truck Model
C10
Engine Size
355
Good idea in your last post, but I wouldn't worry about using anything but small ground straps or even 12-14 gauge wire for a handful of light bulbs. I mean we're not talking about engine to frame to body grounding. Also, I recommend these external tooth washers for ring terminal connections to body and frame.
You must be registered for see images attach
 
Last edited:

Latest posts

Forum statistics

Threads
44,163
Posts
950,690
Members
36,276
Latest member
2manysquares2care
Top