[Noah930]

You can hear clicking coming from the rear axles.

Each of our cars has 4 CV joints. There is one at each end of each rear axle halfshaft. They allow for some "play" so that the engine/transmission can apply power to the rear wheels while still allowing for suspension travel to the rear wheels. Each CV joint is comprised of two discs (or "cages") between which are ball bearings (the size of grapes). The whole thing is slathered in grease, which is held in place by rubber "boots." Over time, and particularly if the rubber boots tear and the grease gets flung out (and lets in dirt/grime), the metal ball bearings within the CV joint wear. There's increased slop in the driveline and you may hear that as clicking coming from the worn CV joint.