That worked! Fix for loud thud from rear (2018 Mazda6)

This 2018 Mazda 6 I bought a couple months ago had spent it's whole life in the Phoenix heat and every time I passed over a bump on the rural road that passes by my house I could hear and feel a loud thud from the rear.

I checked the bottom bushings fro the rear shocks and they were rock hard.
I sprayed them with a name brand rubber/vinyl conditioner, let it sit and penetrate the bushing over night and the thud is gone.

I'll do all the other suspension bushings when I have time.
 
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