What is that clunking noise???

[DYPWICK]

I installed H&R sport/Bilsteins in the front of my '03 4.6us the other day. Minus some height adjustment tweaks everything was dandy...tight as a drum. Couple days later I pull out, small bump (CLUNK!)...what the??? This continues on my drive. First available chance I jack up/remove wheel from offending side to re-inspect my work, everything tight.

Repeat above mentioned cycle only to remember I neglected to replace top strut control assembly on each side with fresh ones. So apparently after disassembling/reassembling a fragile unit it imploded after 2 days. Pretty much explains it.