I drive a 95 Supreme 3.1L V6...I've been noticing that my rear wheels are really creaky. It sounds like when you walk in an old house and the floor creaks...It's worse when I go over bumps so it sounds like a suspension problem maybe? I just got my struts replaced a few months ago. Is the creaking a serious problem or is it safe to go on with it considering I've had my struts replaced? I want to avoid having to take it to a mechanic cuz my guy went out of business and I would have to find a new mechanic

I figured someone must know something on here....Thanks for any help!