03 Sierra Frt. Suspension

Have a noise in LF suspension. Have 125k miles. Noise is a squeak. Happens slow travel suspension moving and turning or not. Ball joints and tie rods have grease. Been there for 20k miles. Has anyone had issue with control arm bushings?

Spray the bushings with wd-40 to see if the squeak goes away. The wd-40 will not last long but it will tell you if the bushings are the source of the squeak.

//2000CAYukon