Upper rear shock studs for a 69 Cuda

I had a rough time holding on to the studs with the shocks removed. The only other way you could do it with the shocks installed is to go to harbor freight and buy a cheap wrench (the right size) then grind it down until it's narrow enough. But remember that it's made of hardened steel so keep cooling it off with water so it doesn't lose it's hardness (don't let it get too hot). You can grab the outer shoulder with vice grips but they don't grab very well on such a short surface and you can't put vice grips on the stud where the shock mounts because it will tear it up. My stud had some corrosion on the threads where the nut goes (on the inside of the trunk). Every time I tried to tighten the nut the whole thing would rotate. I finally had a friend hold a wrench on the underside of the car (on the flats of the stud with shock removed) and with plenty of lube on the threads it broke loose and I was able to tighten it.
Treblig