clunking noise coming frpm the left side of the front end when i hit some bumps but not all the time. It also does it ehrn the car shifts hard but again not all the time. I took a look at my bushing and it looks like the bushing has shifted and the seam is not completely lined up on the left side. just ordered the GMPP front sway bar from my local GM dealership. Do you think I'm on the right track and also how hard is it to replace the sway bar any tricks for it.