You should have your front suspension checked completely, not only your Lower Control Arms, but lower and upper ball joints, sway bar links, outer tie rods, boots and bushings in general.I've heard a knocking sound underneath when I go up and down the driveway. Is there a way to check these if they are bad, or with my mileage do I just assume they are? What are the parts I need to get in order to replace them?
Steer your wheels to have a clear view of the compliance bushings of your LCAs and check for any cracks and tears. These are the most commonly damaged bushings in the LCAs. My original OEM looked like this at 140,000 miles. This is the passenger side