From your post it's unclear where your problem is, you have several possibilities:
The weld-in nuts inside the frame have lost their threads from the rust, or the nuts themselves have fallen out because of rust around the nut.
The bolts have lost their threads from rust corrosion - this is normally coupled with the nut threads losing their threads.
The holes in the skid plate have enlarged from rust to the point that the bolts no longer hold it up.
If the nuts are "shot" one way or another, they need to be replaced. If there's enough steel left on the bottom of the frame, you can weld in some new nuts. If the holes for the nuts are also rotten, then you need to cut out the bad material, make a plate with a nut attached, weld that in, and then reinforce the seam. My preference is to cut a hole on the side of the frame, clean out the area, insert a plate with nut attached and weld this to the inside of the frame. Next, weld a patch over the hole on the side, grind it smooth and weld a reinforcement over.
If the bolts only are shot, get some new 1/2"NC - you won't get the tapered OEM bolts, so get the standard hex head (grade 5 or 8) with thick fender washers (1/8" thick or better - a fender washer is just a wide washer, close to 2" diameter for the 1/2" bolt). Use the same solution if the skid plate holes have enlarged.
Originally Posted by CALUfootball64
i think i just need new nutserts for the frame, and a new skid plate or weld the bolt holes on the skid plate.
Just make sure you have enough steel around the holes to weld to. Normally when you loose the nuts, it has a lot to do with the frame rusting away around the welded in nuts, leaving very little to weld new nuts onto. That's why I prefer to cut on the side to weld a new plate and nut into each position. If you have a good "floor" to the frame around the bolt holes then welding in the nutserts is a viable option.
this might be what i need to do, maybe not ill have to take it down and look.
very well could be a problem
04-07-2013 12:38 PM
Skid plate falling off
So I have a 2000 wrangler sport, and yesterday I was driving and there was some clicking noise. When I looked at it I noticed my skid plate was basically off. I also noticed that the frame was rusted out, the bolts on the skid plate just fell through the holes on the frame.
Does anyone have any suggestions on what I should do? Thank you for in advance
Thank you. I appreciate it. I'm guessing those are pretty expensive though?
04-07-2013 01:44 PM
wield them in would work, however in the long run itll be nothing but a pain.
i would say buy a new skid,
then drill the holes in the frame out and re thread them to a bigger size ( nothing too big cause you want to bolts to fit threw the holes
in the skid plate)
04-07-2013 02:19 PM
This is what it looks like down there
04-07-2013 04:16 PM
man , thats some serious rust. you need to cut that all out of there and either by the kit or some steel and build it yourself. there about 150 per side. i would make my own because im cheap. but heres a link for u: http://www.jeep4x4center.com/auto-rust/wrangler-tj.htm
04-07-2013 04:20 PM
i wonder what the rear shacke area looks like if theres that much rust there