I have a 1997 k1500. Everytime I start out or stop it usually makes a weird sound. It's lower pitched than a squeak but it's really annoying. I thought it was coming from the shocks, but I replaced them and it wasnt from them. It happens when I first put in drive and it makes a leap forward, or when I stop and it relaxes back. Any input would be helpful. It may just be from leaf springs or something, but I don't want it to be anything that might potentially get worse