I was wondering if anyone has a loud squeaking in their rear control arms after installing polyurethane bushings? Didn’t start until about 5 months after installed and only squeaks on the passenger side.

 

If it bothers you too much you could remove the bushing and put more grease in, but its pretty common for that to happen. Its likely you will need to grease the bushings every 3-6 months since the bushings are so tightly fitted.