OEM brush guard bolts interfere with recovery points

[pixlpush]

The more I look at that situation I think hard shackles would be the best solution

Your probably right, that very well may be where I end up. They’d still slop around in the big rectangular hole but less concern about them wearing through on the bolts for sure. I have some 3/4” ones I’ll dig them out and see if they fit.

Sponsored

 

[Garth]

There are different shapes, so hopefully that’s what Ford had in mind when they created that set up. It would be nice if they offered the parts

 

[pixlpush]

…It would be nice if they offered the parts

Well based on the separate part price of the brush guard a “Ford” shackle would be $700 minimum .

They probably don’t want anything to do with the liability involved of one breaking and turning into a bullet either.

 

[pixlpush]

The more I look at that situation I think hard shackles would be the best solution

Well you very well may be right. The 3/4” shackles I have fit. Now I just have to keep them from bashing around inside the big rectangular hole.

The plugs I was 3D printing for the soft shackles are a bit to wide to clear but this general shape is going to work. This is turning into way more of a project than I expected

 

[jkernitzki]

This is turning into way more of a project than I expected

Doesn’t it always.

 

[Escape2Bronco]

Well you very well may be right. The 3/4” shackles I have fit. Now I just have to keep them from bashing around inside the big rectangular hole.

The plugs I was 3D printing for the soft shackles are a bit to wide to clear but this general shape is going to work. This is turning into way more of a project than I expected

Honestly, you probably would have been fine with soft shackles. Most off road recovery companies have now switched to them exclusively. The same for winch lines. And they’ll attach them to almost anything they can get them around including lower control arms, frames, etc.

But, half the fun of these is coming up with things to make life easier. Sometimes, life’s just harder for a bit with the hope it’s easier later!

 

[Garth]

There are different shapes of shackles as well

 

[pixlpush]

M10 - 1.5 button heads arrived. I’m much more comfortable with soft shackles potentially rubbing on these than the OEM hex heads. Going with these and the M10 acorn cap nuts on the other side.

 

[jkernitzki]

M10 - 1.5 button heads arrived. I’m much more comfortable with soft shackles potentially rubbing on these than the OEM hex heads. Going with these and the M10 acorn cap nuts on the other side.

Looks better than OEM, too. Same grade, I assume?

 

[pixlpush]

Looks better than OEM, too. Same grade, I assume?

There was only one option in Black Oxide from McMaster so that’s what I went with. Not sure on the grade but I’m not concerned.

 

[Escape2Bronco]

There was only one option in Black Oxide from McMaster so that’s what I went with. Not sure on the grade but I’m not concerned.

The screws you got are equivalent to a SAE grade 5. The tensile strength is 120,000 psi.

 

[pixlpush]

The screws you got are equivalent to a SAE grade 5. The tensile strength is 120,000 psi.

I went back and looked at the spec sheet from McMaster and they are Metric Class 10.9 (equivalent to SAE Grade 8, High Strength) rated. (I just noticed that 10.9 is stamped right on the head too, I hadn't noticed initially)

Button Head Black-Oxide Alloy Steel, M10 x 1.50 mm Thread, 55 mm
Button Head Black-Oxide Alloy Steel, M10 x 1.50 mm Thread, 50 mm

Anyway I’m still not concerned. I think these are more than up to the task of holding the cast bushing in place. The bushing (#2 in the diagram) will take most of the shear force, the upper bolt is primarily just keeping the bushing in place.

McMaster specs

#2 in this diagram is a robust cast bushing

 

[Escape2Bronco]

I went back and looked at the spec sheet from McMaster and they are Metric Class 10.9 (equivalent to SAE Grade 8, High Strength) rated. (I just noticed that 10.9 is stamped right on the head too, I hadn't noticed initially)

Button Head Black-Oxide Alloy Steel, M10 x 1.50 mm Thread, 55 mm
Button Head Black-Oxide Alloy Steel, M10 x 1.50 mm Thread, 50 mm

Anyway I’m still not concerned. I think these are more than up to the task of holding the cast bushing in place. The bushing (#2 in the diagram) will take most of the shear force, the upper bolt is primarily just keeping the bushing in place.

McMaster specs

#2 in this diagram is a robust cast bushing

I wouldn’t be concerned either. However, according to the McMaster Carr specification, they are saying 120,000 psi tensile strength normally considered sae grade 5. 150,000 psi tensile strength is normally considered grade 8. Perhaps McMaster-Carr has the tensile strength miswritten since ISO Class10.9 is normally considered equivalent to a SAE Grade 8 bolt. Again, I wouldn’t be concerned in this application.