2007 RX350 with 110,000 miles. Car has had regular maintenance throughout its life (it was a one-owner corporate car through 85K miles with service records and I have had it since then). It is need of new rear shocks and I would plan to just change all four corners.

Do I just replace the $hock$ (absorber assembly) without new coils or do I go the whole $$$$-enchilada?

 

I'd just replace the struts & use your original springs...

 

kyb shocks and keep springs

 

Go for bilstein shocks if available for your car.

Dont make the same mistake. Often other suspension components such as bushings control arms tie rods etc. Wear out and reduce suspension dampening long before you actually need new shocks.