I notice/hear when I connect a loaded trailer on my truck that it makes a squiky noise when the trailer bounces while going down the road, I figure this are the leaf springs and will like to know how to do any maintenance on them if that is possible or if I should replace something if not all. I don't see any of them cracked it just makes noise and I know is not the shocks, they are new rancho 9000.
Thank you.
Thank you.