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Jul 21st, 2025 | | | | Joined: Nov 2005 Posts: 1,048 'Bolter | | 'Bolter Joined: Nov 2005 Posts: 1,048 | When I got my ’41 Chevy ¾ ton there was a web type ground strap running from the negative terminal of the broken 6 volt battery to one of the transmission cover bolts. However I have never found a ground strap from the engine to the frame or body. And I have never found a ground strap from the body to the frame. I have redone all of the electrics including all new wiring, and everything seems to work fine.
Is / are there supposed to be engine and body ground straps?? I have not had the truck on the road and am worried that with a little bouncing around whatever is currently grounding the engine and body might go away or become intermittent.
If there are supposed to be connecting straps where were they originally??
| | | | | Joined: Jul 2005 Posts: 2,031 Shop Shark | | Shop Shark Joined: Jul 2005 Posts: 2,031 | by all means
ground as you have described. more is better
my 3104 has ground straps @ the frame to:: rad. support (elect fan)-cab-bed-engine-gas tank-inner fender where
my relay panel is located-back roll pan (for my tail lights)
Last edited by carolines truck; 02/04/2008 3:22 PM.
Jim & Caroline
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| | | | | Joined: Oct 2006 Posts: 9,671 'Bolter | | 'Bolter Joined: Oct 2006 Posts: 9,671 | Hey Kip, I didn't see an responce from this afternoon so I just thought I throw this out. Now maybe someone with a '41 will come back at ya and correct me.
On my '50 3/4 ton the stock grounding consists of two bare braded straps one from the battery neg and bolted a hole in the frame about 6" behind the battery box. The other goes from the top of the bellhousing in the same hole that the foot starter cross shaft right bracket bolt into and it runs directly east to a hole in the frame. Battery to frame-frame to engine!
Denny Graham
Sandwich, IL
Denny G
Sandwich, IL
| | | | | Joined: Aug 2005 Posts: 6,383 Ex Hall Monitor | | Ex Hall Monitor Joined: Aug 2005 Posts: 6,383 | I think originally the thinking was that the ground path through the engine mounts & body bolts was enough for proper operation, and probably was until rust sets in. As important as good grounds are for a 6v system there is no such thing as too many grounds. 
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| | | | | Joined: Jan 2003 Posts: 354 'Bolter | | 'Bolter Joined: Jan 2003 Posts: 354 | Kip,
I have a '41 3/4 ton that I think was very close to stock when I bought it. It had the same ground strap arrangement you describe, & nothing from the engine to the frame. I moved the ground starp to the frame when I installed a T-5 transmission. the ignition & starter still work OK but I plan to add an engine to frame connection later just for insurance.
Harold Wilson
41 Chevy 3/4 Ton
| | | | | Joined: Jul 2005 Posts: 1,158 Shop Shark | | Shop Shark Joined: Jul 2005 Posts: 1,158 | Kip, mine is the same way, and I haven't changed it at all... it works just fine.
However, it never hurts to have a few extra paths to ground, for fault tolerance's sake. | | | | | Joined: Nov 2005 Posts: 1,048 'Bolter | | 'Bolter Joined: Nov 2005 Posts: 1,048 | Once again thanks for all of the help. This really is a GREAT site and GREAT people.
I have not had the engine out of my truck so I’m not familiar with how the engine mounts are constructed. I’m wondering if the steel mounting bolts go all the way through the rubber and provide the ground from the engine to the frame (As Tiny says). Over the years I have had a few engines out of other newer vehicles and this was not the case. These relied on that ground strap.
Anyway I will be installing additional straps
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