Hi, my car has about 108k now and I started hearing a slight/light clunk coming from rear (center I think) when I let off gas, nothing when I accelerate hard, just when slowing down and when it down shifts (not transmission). Figuring there is some kind of center bushing back there?

 

It’s probably your diff bushing. Super common failure point that allows for tons of slop in the driveline. Z1 has a great video showing why you likely will need to replace it.

 

Thank you, I agree, I can see some slight rust color fluid that has leaked out.