what you describe is correct
if i am not mistaken, the early (non-recall) rear guide (metal with a rubber coating of some sort) used the wave washer under that gold bolt you described
the 2001 and any that had the recall guide put in would only have the bolt
the old stiff metal rear guide has a counterbore relief machined into it for the wave wahser to sit
anyone???? correct, me if i am wrong please