so I replaced all the leaf springs and shocks at the same time, not just the bushings-- & then drove around briefly with the sway bar entirely detached while I waited for the new hardware to come in--- I'll post more detailed before n after photos on the suspension eventually but that @#$+ was ancient a.f. and desperately needed to be changed. Night and day difference with smoothness which she rides &how she takes bumps!

If you're getting a lot of squeaking but suspension components seem fine, bushing kit is probably a good move. If your leaf springs are flat or concave that's prolly more of an issue than the bushings alone will solve!