I have 98 forester. I've broken and replaced a few rear sway bar brackets on each side a few times now. I was trying to replace a newly broken one yesterday and one of the captive nuts holding the bracket broke loose in the uni-body. I've read about a few fixes including drilling a hole in the floor above the nut to get a wrench on it from the top-side. Anyone have any good experience to share?

thanks for the input 

matt

That's what I had to do on my old Impreza. I cut a square out of the top with a cutting disc and clamped it with vice grips.

Did some measuring and got started with a few holes in the top layer from the trunk side. The interior stuff comes out easy enough. Noticed there's a second horizontal layer of sheet metal within the unibody rail. So, I got one hole thru that and can't find the captured nut. Not quite as easy as hoped. Time to drill out the problem bolt from below. I need a bit more coffee and time for this.

I was never able to find mine from up top either (different bolt and car). There were multiple layers and folds making it very ambiguous and challenging. I cut a lot and gave up and went from underneath.