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Old 06-10-2009, 11:48 PM   #1
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Ruh roh

Anyone have any experience with this?

I dropped off my Jeep today to get the Cat changed out and a new 02 sensor, because there's a quarter-size hole in it and it sounds like hell... anyways, they went to drop the belly pan, and three of the bolts were spinning in the frame. Diagnosis: They have to send it to a body shop, cut the bolts off, then weld nuts into the frame so they have something to bolt the pan back into after the cat's installed.... They are calling me tomorrow with an estimate for the frame work.

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Old 06-10-2009, 11:53 PM   #2
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if they are just spinning tell them you will take them out. All you need to do is while turning the bolt apply pressure with a screwdriver and it will come out.

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Old 06-11-2009, 12:02 AM   #3
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Yeah, go get your jeep back before they hit you with this huge bill. God these people are such scumbags.

This is what I would do..
Try the screwdriver thing, if that dont work.
Get a nice drill, and a good drill bit. Drill the bolts out of the frame. Then tap new threads and get 3 new bolts one size bigger for the new threads.
Even all that work will still be cheap done by yourself.


Wait a minute how could they be spinning in the frame. Aren't the threads already tapped into the frame itself??? theres nothing behind the frame that would spin.
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Old 06-11-2009, 12:14 AM   #4
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I believe the frame itself is not actually threaded. There is probably nuts welded inside the frame that the bolts go up into. 3 of the six have rotted/broken off the frame so they are spinning. The real issue is safety- that pan weighs a ton, so 3 bolts- 2 on one side and 1 on the other, are really not sufficient to hold it up. They can take it off no problem but it's probably not a good idea to put it back up there with just 3 bolts...
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Old 06-11-2009, 12:19 AM   #5
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Drill a hole through the nutcert and into the frame then pin them. That's what I did.
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Old 06-11-2009, 12:50 AM   #6
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Drill a hole through the nutcert and into the frame then pin them. That's what I did.
I'm not familiar with the word nutcert... and how to 'pin' something. FYI- I am not a newb when it comes to repairs, apparently I am not up on terminology though... Please describe this a bit more, I would love to do it myself and avoid getting hosed by some auto body shop.
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Old 06-11-2009, 01:03 AM   #7
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The nutcerts are the threaded inserts they spot weld into the frame. Those welds break easy and the bolt just spins. There's a lip around the cert, the lip is what you'll have to pin to get the bolt out/in. I ground down a set of vise grips and used them to hold the cert in place while I pulled out the bolts.

I then drilled two small holes through the pan, the cert, and the frame and pounded rivets in there (with a hammer). Then I took a hack saw between the pan and the cert/frame, and cut off the extra. This held the certs in place while I bolted everything back in place.
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Old 07-05-2009, 05:42 AM   #8
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just drill the old nuts out with a big drill bit and weld in the new ones worked for me very easy.
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Old 07-05-2009, 12:56 PM   #9
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Check out this other thread: http://www.wranglerforum.com/f5/newb...rts-32661.html

There are a couple ideas there, although Tiny's solution may well be the easiest. More importantly, however, this guy had the exact same trouble. Not sure if they are the same three bolts, but also three loose rivet nuts. And also on a 98.

Out of curiousity, and not to high-jack the thread (but since it is on topic) - what year is yours, Tiny? I'd be interested to know how common an issue this is with '98's.
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Old 07-05-2009, 01:12 PM   #10
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Check out this other thread: http://www.wranglerforum.com/f5/newb...rts-32661.html

There are a couple ideas there, although Tiny's solution may well be the easiest. More importantly, however, this guy had the exact same trouble. Not sure if they are the same three bolts, but also three loose rivet nuts. And also on a 98.

Out of curiousity, and not to high-jack the thread (but since it is on topic) - what year is yours, Tiny? I'd be interested to know how common an issue this is with '98's.

Mine's a 2005 but I believe the t-case skid is the same on all TJs. After I pinned them, I had to adjust the transfer case for a little vibration a couple of times. The certs have stayed put and I haven't had any problems since.

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