Shackle to spring and shackle to frame bolts came out pretty easily on mine, with 2 cans of pblaster on them over a week (northeast/new england history xj). Original springs at 200k/24 years. Fronts frame to eyelet bolts took jumping on a cheater bar’d 1/2” breaker to move. One snapped the captive nut in the end and required cutting an access hole in the mount. Tbh, doing it again id just plan to cut access holes from the start, chisel or wrench the captive nuts free, cut the bolt off and be done with it. I seem to recall my husky springs came with new hardware.
Degrease and spray some truck bed liner in there before and after install for corrosion protection, no need to reweld it back.
Theres 2 listings for husky springs on rock auto. The longer free arch is what i went with, and it is jusy shy of the upcountry stock height. They are stiff as hell though, and im still breaking them in 40k later