What to do along with ball joints?

I'm having the shop do the upper and lower ball joint next week on one side, due to torn boots and a very minor wheel clunk at 12-6 direction indicating that one is loose. The other side was done a while back.

Other things generally look ok by my casual inspection. I have a minor vibration at all speeds, only when moving, that I'm trying to solve, as if I feel every pebble in the road. Good tight steering, good alignment, corners fine, tire tread looks fine, new sway bar links, tires 30 PSI. Shocks seem fine, like they don't bounce excessively or pitch forward when braking.

I'm considering having them add something relatively cheap while they're under there like control arm bushings or steering rack bushings, maybe grease gun something? The ball joints might fix the vibration and I don't know if it's worth having them do anything else before I test drive it again. These are all things I'm not comfortable doing myself, so it crossed my mind that it might make sense.

 

I'd ask the shop doing the work what else it needs.

 

Don't ever replace only one side of your wear items; if you're doing ball joints or tie rod ends or whatever, have them replace said parts for both driver and passenger sides.

Hell, even when I replace my signal bulb or brake light (if one burns out), I replace both sides.

 

This is sage advice. If one side is bad, the other one isn't far behind. change both sides when you do anything on the front end. Same goes for shocks, and brakes.