Upfitter Wiring Harness Discussion

Who sells these wire harnesses and has the side mirror lights came out yet?
 
BroncOh said:
Perhaps you can extend the ground point with a small length of flat stock, to create a bus bar, then you will be in the clear of the strut. Flat stock with two drilled holes and one bolt and nut needed.
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100%. I just took a mic measurement of both holes…. 0.25” and 0.400” that’s what I’m gonna make tonight at work lol. Great minds think a like!!
 
I am about to start my install in my ‘22 7.3 and I have a couple of questions:

Is there any use for the 4 PTO connections if you didn’t order that option? Are they worth wiring up if I have no provision to use them or do they have some function I could use them for? (I was considering snipping them off to save space if they have no useful function without that option from the factory)

Where is everyone leaving the new bundle of connections? Facing up in the engine bay or tucked down below the relay box? Today I pulled out the upfitter relay box to work on it on my bench and was just thinking about where to tuck all the wires in when I reinstall it.

Anyone have any pictures of it installed on a 20-22 7.3 truck they can share?

Thanks!
 
TRAMPER said:
View attachment 161464
Follow up…. Went to close my hood today.. fortunately I am not one to slam things, the cable here hits the support strut on the hood so now I have to rethink this a little bit….
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BroncOh said:
Perhaps you can extend the ground point with a small length of flat stock, to create a bus bar, then you will be in the clear of the strut. Flat stock with two drilled holes and one bolt and nut needed.
Click to expand...

IMG_2956.webp


This should do it! 100% copper. I’ll see how it fits in the morning.
 
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Mad_Max said:
I am about to start my install in my ‘22 7.3 and I have a couple of questions:

Is there any use for the 4 PTO connections if you didn’t order that option? Are they worth wiring up if I have no provision to use them or do they have some function I could use them for? (I was considering snipping them off to save space if they have no useful function without that option from the factory)

Where is everyone leaving the new bundle of connections? Facing up in the engine bay or tucked down below the relay box? Today I pulled out the upfitter relay box to work on it on my bench and was just thinking about where to tuck all the wires in when I reinstall it.

Anyone have any pictures of it installed on a 20-22 7.3 truck they can share?

Thanks!
Click to expand...
One other question about the PTO wires - aside from the B+, the harness has them labelled as PTO 1-3 which does not correspond to the factory labels. Does it matter which goes where? Since I may never use them I’m thinking it doesn’t unless I missed something.
 
TRAMPER said:
My truck has a grounding bolt right beside the battery. It’s a 5/16” long headed bolt
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I have the same bolt never thought of it as the grounding point are you certain it actually does ground?
 
Alpoba said:
I have the same bolt never thought of it as the grounding point are you certain it actually does ground?
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I mean, it’s an inch long threads into all metal, I assume so…. Tbh I think it’s specifically a grounding point.
IMG_2957.webp

Looks like a “minus” right on it
 
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Mad_Max said:
One other question about the PTO wires - aside from the B+, the harness has them labelled as PTO 1-3 which does not correspond to the factory labels. Does it matter which goes where? Since I may never use them I’m thinking it doesn’t unless I missed something.
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I am also interested in this. Anyone have an answer? Cheers!
 
TRAMPER said:
I mean, it’s an inch long threads into all metal, I assume so…. Tbh I think it’s specifically a grounding point.
View attachment 161586
Looks like a “minus” right on it
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I do think it’s funny that this bolt all this time was looking right at us and yet there was the whole discussion a few pages back on where to ground on a 23, with some weird ideas to go across to driver side amongst them. Looks like you might have figured it out👍🏼
 
BroncOh said:
Looks great, 1" endmill on a Bridgeport? @TRAMPER
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😉

Nope…. Belive it or not that hunk of copper was off of an old fuse (yes we have fuses that big) that was one of the blades on the end of the fuse. I just clipped it off polished it up and drilled the holes. Machining was all there already. It was free and I think it’ll work great!

Obviously i smoothed it all out so it would look nice lol
 
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TRAMPER said:
😉

Nope…. Belive it or not that hunk of copper was off of an old fuse (yes we have fuses that big) that was one of the blades on the end of the fuse. I just clipped it off polished it up and drilled the holes. Machining was all there already. It was free and I think it’ll work great!
Click to expand...
If you wanna get fancy, mill a slot recess so the lug doesn't rotate when you tighten it :sneaky:
 
Mad_Max said:
One other question about the PTO wires - aside from the B+, the harness has them labelled as PTO 1-3 which does not correspond to the factory labels. Does it matter which goes where? Since I may never use them I’m thinking it doesn’t unless I missed something.
Click to expand...
I didn’t even hook mine up. They’re there if I ever need them but i can’t even guess as to for what or how so I didn’t bother.
 
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