My guess would be stearing stabalizer, took 5 min to change two bolts and done! But before Buying anything do a visual inspection, and try shaking tie rods if the move or rattle could need new ends. if not stearing stabalizer is a quick cheap fix! also depending on tire size you could need tires balanced!
92 wrangler yj 4 in lift, sye, posi lock, 35x12.50x15 on outlaw rims. much more to do!!