You may be restoring a 1968 – 1972 Chevrolet Nova or just replacing some worn out springs and noticed that where the front spring attaches to your vehicle is not coming loose.Lag Bolt Pilot hole size For some reason this part does not come off as easy as a Nova hood or fender and there is a good reason for this.
The way a Chevy Nova front spring attaches is that it is bolted to a bracket that must be removed first before removing the spring. The problem comes into pay when the bolts that hold the bracket on just spin and spin. Most likely from corrosion especially in northern states, but I ran into this even on a southern car here in Florida. The bolt does not bolt into a nut or threaded part of the frame. The bolt that holds those brackets on bolts into a clip; and that is what is spinning on you.
You do not want to cut your Chevy Nova’s floor board or anything like that. What you actually have to do is cut the bolt head off to free the bracket. You will probably have to do this to all three bolts that holds on each of the two brackets. After that the bracket will be free and you will be able to remove your Nova’s rear spring.
If you need more information check the internet, because it seems like a lot of people have had similar issues. I was able to find several pictures and people describing so do not worry your not alone.