Look at your springs for excessive rust and pitting while considering re arcing them, Jim Carter sells new perfectly matching original US made springs $250-$300 each, and they come with new end bushings installed (at least mine did).
Most of us have a local(ish) spring shop, usually truck related, that you can price re-arc, my springs were very flat so I saw value in knowing what I was putting in was best available, some folks have complained that re-arc settled back, but that can be as much who did it (and did they really re-arc every leaf)….
Btw: if you get new you can replace them sequentially, ie:one at a time, no issues with the axel rotating or running away…
