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Try Bilstiens or Monroe sensatracs. If you are unlifted stock application works

Not to bad if you can get it apart. Sometimes the bolts get rusted and hard to remove. Just do one at a time and use ratchet straps to get everything realigned

All the bushings in the upper and lower control arms wear out and then transmit vibrations to the rest of the jeep

You would be surprised at what a good set of shocks would do for that and maybe some new bushings

It is certainly possible with larger bumps. You might check your shocks first though. Jump up and down on the bumper and then jump off. The rig should go up once and settle back down without...