I removed my quad shocks 3 weeks ago, now I'm hearing a knocking sound coming from the driver side rear tire. I only hear the noise when weight is applied to that side of the car (turning right, additional passengers), or when I hit a dip/bump in the road. I had my wife and brother in the car this past weekend and the knocking was constant - the knocking didn't stop until the car stopped. Very rarely do I hear the noise when I'm alone in the car. Obviously I'm not very mechanical, so I'm asking you guys, what do you think the problem is, and what do I need to do to fix it? Thanks.