if you hear clicking on rear wheels that sounds like a cv joint going out or clicking, then it is almost for sure your rear control arm buchings. it is not necessary to ever replace these unless the bushings are in severly bad shape but leaving them clocking sounds horrible and car is less predictable in high speed cornering. the solution is either to buy a new set of control arms from acura- lotsa $$$- or to by energy suspension rear control arm bushings for about $35(summitt). it is a tedious job to do but once done solves the clocking noise and most people feel a difference in launching your g2