Clicking noise on front passenger side

i was trying to install some coilovers and i couldnt complete the process today, so i had to put the stock stuff back on. i recently went for a drive and there was a clicking sound on the front passenger side. could this sound be because the end links bolts are loose? or do you think that i messed up the axle?

actually its more of a thud

Seems like your end links may not be tightened.

yeah that is what i am hoping. today i was trying to get them off and i must have forgotten to tighten them all the way.