Creaking springs

The Tacoma is almost 9 years old with 165,000+ miles. At slow speeds the rear springs have started making a creaking sound as I drive over speed bumps etc. I'm sure it does it at high speeds too but I can't hear it. Any easy cures. Spray with silicone, WD-40? It isn't terrible, but if I can make it quite again I would.

 

This is a known/common problem with our leaf packs. search for "rear leaf springs" and you could pick from alot of threads that way. I solved mine (it got really loud for me at 100K, so I think you're doing very well) by adding an AAL from Icon during my lift and suspension replacement. I might be wrong, but i think there is even a TSB on them.