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Unread 06-22-2007, 07:04 AM   #1
ETJeep
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Join Date: Dec 2006
Location: Indianapolis, IN
Posts: 55
Rear body mount bolts on a 78 CJ5

I'm getting ready to put my tub back on the frame. Of course, when I took it off, I had to cut off the bolts on the rear body mounts (the ones that mount on the rear bumper). In previouse discussions, it was suggested that I just weld a new nut onto a piece of sheet metal and insert it into the channel.

My question is this. I need to cut an opening in this channel to remove the old bolt (and treat the rust). Where should I cut the openings? Should I:

1 Cut through the outer sheet metal
2 Cut from behind
3 Cut from underneith

I started cutting from the outside (right under the fuel filling opening) but it seemed pretty thick, like there was some sort of reinforcement in that area. Before I went any farther, I thought I better ask the experts.

Any suggestions? I'll try to get a pic at lunch and post it, but nothing right now.

Thanks,

E T

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Unread 06-22-2007, 08:25 AM   #2
Fatman
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Join Date: May 2006
Location: Raleigh, NC
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If the tub's off, flip it and just peal back the boxing that makes up the rear channel rail
Why not just drill out the broken bolt and retap the existing nut (plate)?

We are talking about the mount location shown where the tie down is connected?
Not sure if the 79 and 84 tubs are the same but if you can't tap the existing, I'd work the repair from the inside.

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Unread 06-22-2007, 09:00 AM   #3
ETJeep
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Yea, that's the setup. I had to cut them off because the captive nut inside broke loose (cage rusted away).

So when looking at your photo, I would cut from the right, from the inside portion of the tub?
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Unread 06-22-2007, 09:08 AM   #4
Fatman
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I'd pop open the welds with a cut-off or sawzall and peel it back like this:
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