So for the last week I have been hearing an annoying loud squeaking noise coming from my drivers side rear. So after work today I stopped by my mechanics shop so he could see quick. When pushing up and down on the trunk you can hear a squeaking noise. He crawled underneath as I did this and says it looks to be a "Dry Bushing". He says it'll have to be greased up for it to go away. Does this sound correct? If so how do I go about greasing the bushing? I'd like to do it myself to save myself the money at the shop.