Rear Coilover question

[bad.samaritan]

Hi guys

I have been looking at installing some coilovers on the rear of my 70 Chevelle and was curious about the kits that are bolt in and re-use the original shock area vs. the weld-in kits.

I i'd like the ease of bolt in but I am a little nervous about all that pressure being put on that small area at the edge of the spring hat where the original shock goes. Any issues of it breaking?

Here's a install writeup of one of the kits I've considered using (thanks SicMonte!)

https://lateral-g.net/forums/showthread.php4?t=35470