have a banging noise in rear but changed struts both on 2004 Hyundai Sonata

i had noise in the rear end had struts done but it still makes noise when you hit bumps even little ones but i checked everything seems tight

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2 answers
Have it hoisted and sway bar links checked along with exhaust hangers and any moving componets. Were the strut mounting hardware kits installed with the struts?
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