Yesterday I found a couple washers fixed between my front brake caliper and the axle on one side of the car. I was wondering if this was stock - it didn't seem so. Today, I measuerd the distance from the caliper mounts to the rotors on the right and found that the measurement was different by about 3mm from the left. Maybe these washers were trying to shim the caliper into position. Is there any other reason why this measurement would differ from one side to the other?
I haven't checked the wheel bearings, but each side rotates smoothly. Any thoughts?
The following image shows the measurement I took.
