hooch8

i just dropped my car with the eighbach pro kit , i bought new factory shocks all around , everything is good except the back .....it hits really hard even in small bumps i thought it was the 19s i had on it but i put the factory rims back on and it still does it idk what else to do.....im getting so frustraited im going nuts lol .......is anybody else having that problem or anybody got an idea of what it is