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Discussion Starter · #1 ·
Like the title says, the bolts on the skid plate for my trans pan wont stay in. The two smaller ones that attach to the transfer case skid stay in but the larger bolts that go into the frame will not. With the drivers side bolt I can screw it in all the up until the last 1/8th inch or so of the bolt. Once I get to that point it just drops back down. Over time the bolt falls out and loosens the passenger side frame bolt.
My first thought was that the nut's threads were rusted away but I don't see how that could be if it screws in and holds for the first 90% of the bolt. Everything goes in like normal until the last 1/8th then I can freely push the bolt up and let it fall back down. Any ideas?
 

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Are you sure you have the actual factory hardware. If it was replaced with a close but not correct thread it could behave as you state.

J
Excellent suggestion. :thumbsup:
 

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Discussion Starter · #6 ·
Are you sure you have the actual factory hardware. If it was replaced with a close but not correct thread it could behave as you state.

J
It is not factory hardware I know that. Do you know the measurements for the factory hardware or know where to find them? I've looked but have not found anything on the bolt size. Even so I don't understand how I can fully screw it into the nut then have only the last part of it back out.
 

· Wizard of Brakes
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34,199 Posts
It is not factory hardware I know that. Do you know the measurements for the factory hardware or know where to find them? I've looked but have not found anything on the bolt size. Even so I don't understand how I can fully screw it into the nut then have only the last part of it back out.
If you want to check the viability of the nutsert itself, the bolt under the rear bumper that goes up into the frame is the same size before and after 03 when they switched to metric in the frame for the belly skid. The same size as the ones for the auto trans skid on the 03 and up that is.
 

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Discussion Starter · #10 ·
The nutsert was bad. I switched the bolt I had in there with the bolt from the rear bumper and as I was tightening it the nutsert let go and is now spinning in the frame. The frame is not rusty and I keep it clean so I don't know if it was just not attached well or what. I also switched from the skid plate to the rear bumper and it went in fine just tightening by hand so it was the right size. Now to get the bolt and loose insert out..
 
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