Toyota Repair: Toyota Camry 92 rear strut noise, rear sway bar, sway bar end links

Question
Toyota Camry 92, 4 cylinder 140,000 miles.  Every time I drive by a bump, there is a noise from the rear struts, LH and RH. What is the cause of this problem? I've tried to replace the rear strut but the rear sway bar bolt is very hard to be removed due to rust and Allen wrench couldn't' hold it in place.  What do you recommend me to do?  I've also heard the noise maybe from the rear sway bar.  Your suggestion would be very appreciated.

Answer
It's not the metal itself. Rubber only lasts about 10 years. That means suspension mounts/bushings, engine mounts, etc. It's just how it goes on anything.

Normally the sway bar end-links & suspension mounts are causing the noise.
Suspensions only last 10 years on any car anyways. Then you need springs & struts/shocks, or new coilovers.