wdu

wdu: I took my 135,000 mile RX350 to a tire/repair store to have the loud clunking noise diagnosed and they discovered the upper shock absorber mount was loose. After tightening the three bolts, my car once again rides beautifully.

I have a RX350 with 135000 miles. No problems with the car until recently when a loud clunk (as if someone was hitting the rear right fender) especially when hitting a bump. I recently changed the shock absorber but the clunking immediately became worse. Nothing looks amiss but something obviously is. What could this loud clunking sound be?