UCA & LCA replacement on 2wd?

I am chasing a light shaking that happens when hitting bumps. The new softer shocks handle it better than the old shocks, and I think it's bad bushings somewhere (no clunk noise, just brief low-amplitude shaking). I'm thinking the LCAs and/or UCAs should be replaced. I'd rather spend money than try to press bushings.

Aftermarket UCA includes the UBJ. Diagrams below. Basically remove cotter pin & castle nut, remove UCA bolts and shims, and pull out the assembly and replace? Could it really be that simple?

As for the lowers, aftermarket LCA unfortunately does not include LBJ and I'd have to pull the LBJ. So does this make sense to try the simpler(?) job of replacing the UCAs first?






Mevotech UCA: