This.
If its taking 9 hours to install a set of sliders, the problem may not be with the sliders.
The OP is talking about one specific stick nut. It is really tricky.
If I recall correctly, the way to go was to flatten it as much as possible and get it in from a counter-intuitive hole in the back of the frame rail but it has been two years.
The sliders themselves are nice but the mounting is sub-par.
I did not waste much time with them only because the Shrock gas tank skid had given me a heck of a training previously :rofl::rofl:
Also, the front pax side REQUIRES drilling a hole. I am obdurate enough to have had an additional plate welded instead. But without extra support, the front end of the slider is not reliable. It WILL touch the rocker if you hit it.
Oh, and the rear ends of both sliders bent upwards and touch the rockers if you try to test them by jacking. There is not much weight there on trail, so long as you don't slide in reverse, lol, but still.
Really, the only edge the Shrock sliders have over others is the understated near factory look with powdercoat quality far above that of any other sliders I have seen. That, and the price was less outrageous than what others were asking two years ago.