Rear ICONS & mounts...

[skyscraper]

THe welds didn't break, the square tubing did. It's not a welding issue.

Unless I can't see well enough. Is there a crack in the weld?


Edit: It's also not square tubing, it's like half tubes welded together. The structure would have been much stronger if it was a solid square tube.

 

[vince7870]

so huck what do you think now about my pics.....surely my grinded mount didn't cause the failure internally on the bar?

 

[Huck]

It's not a welding issue. It didn't break at the weld and properties of materials tell us the weld is stronger than the material around it.



By grinding the mounts you changed the structure. It failed right where you ground it. Look how thin it is competed to stock

You reduced the cross section by at least half. There for the mount had at a least half the strength as ford designed it to.

And that's exactly where the failure happened.


It also wasn't the box component that failed. It was the vertical mount

 

[vince7870]

THe welds didn't break, the square tubing did. It's not a welding issue.

Unless I can't see well enough. Is there a crack in the weld?


Edit: It's also not square tubing, it's like half tubes welded together. The structure would have been much stronger if it was a solid square tube.

poorly welded. I'm assuming this piece is welded manually on the assembly line?

"sometimes ya feel like a nut sometimes ya don't!"

 

[skyscraper]

Being a welder in the oil industry I can tell you that it's difficult to guage a weld after it's been painted. But I see no reason to believe the welds failed. It looks like the mount itself ripped apart. If the mount was not fused to the square bar properly, you would see exactly where the weld broke.

What is it that you grinded and why? I can't tell from the pics.

 

[vince7870]

It's not a welding issue. It didn't break at the weld and properties of materials tell us the weld is stronger than the material around it.



By grinding the mounts you changed the structure. It failed right where you ground it. Look how thin it is competed to stock

You reduced the cross section by at least half. There for the mount had at a least half the strength as ford designed it to.

And that's exactly where the failure happened.


It also wasn't the box component that failed. It was the vertical mount

my thoughts are that the clearance definitely caused more upward leverage which in return torqued and separated square bar. I'm all fixed and rolling again. just sharing my findings. some guys have never had an issue with same mod and some did. better weld on rod better chance you survive is all I'm saying!

---------- Post added at 08:20 PM ---------- Previous post was at 08:18 PM ----------

Being a welder in the oil industry I can tell you that it's difficult to guage a weld after it's been painted. But I see no reason to believe the welds failed. It looks like the mount itself ripped apart. If the mount was not fused to the square bar properly, you would see exactly where the weld broke.

What is it that you grinded and why? I can't tell from the pics.

to fit the 3.0s you need to remove some material or the top of shock will hit mount during range of motion

 

[Chris Crampton]

so huck what do you think now about my pics.....surely my grinded mount didn't cause the failure internally on the bar?

It most likely did. After clearancing the mount, an added plate welded to both sides would help greatly. It's like shaving a stick down in the middle and braking it over your leg. You know where it's going to fail.

 

[skyscraper]

Ok I see where part of your mount was cut out to fit the 3.0. That's exactly where the failure occurred. Going forward, I would look into reinforcing that mount since there is material loss.

 

[justvettn]

Usually they rip right off which would most likely be a weld failure, like what happened to Greg and Guedney.

 

[skyscraper]

^^^Are there any more pictures of the mount...or link to that thread?