I pulled the whole assembly apart and got the top nut off but I can't get the top off or even see what's holding it on.

 

I hope you put a spring compressor on it first. It's probably just rust holding it together.

 

Lol yes I used a spring compressor, this isn't my first time changing shocks just first time on an fbody. So I guess I didn't miss anything, I'll just spray it with pb blaster and try again tomorrow.

 

Once the nut is off, it should come apart.

Pic of the assy courtesy of Injuneer:

 

Impact wrench & PB Blaster did it for me

 

When you tighten the shock nut back on, are you supposed to prevent the shaft from spinning?

 

Ugh a hammer got me till the rod was flush with the top and its as stuck as ever.

Now I cant find the hack saw.

 

Are you reusing the shocks. If not, you might want to just cut the shock shaft. The upper shock/spring mount is probably going to need to be replaced too.

 

No I'm installing some konis. I assume I will be cutting them off if I ever find that hacksaw but those damn mounts are $55 a piece at autozone.

 

Umm, yeah or you won't be able to tighten the nut.

 

I've heard that the autozone mounts aren't exactly accurate in where the holes are drilled

 

Well I finished the job a little while ago. Once I used the hacksaw on the shaft I was able to hammer out the tip with a punch so I could reuse the mount. On the second shock I didn't even bother removing the bolt although it was so rusted I doubt I could have.