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

Asked by for the 2004 Hyundai Sonata
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?
ck insulators on top