so my upper rear knuckle bushings are pretty much non-existant and i'd like to replace them sometime in the near future - prolly with the ES ones. what tools will I need besides the typical sockets and whatnot? do i need a spring compressor? i'm not sure how many of the bushings i'll do since i know what a PITA they can be. the knuckle bushings definitely need replacement though. car's clunking all around the place atm. thanks