Basically as the title suggests. I just replaced the belts on my '92 SS which of course has the flanges on the end of the cam gear pulleys. I was able to get them off and back on in decent but not great condition. (Whoever does this and keeps them nice i'd like to hear from) Anyway searching old threads revealed one member who suggested they could be left off with no harm- basically replicating the newer design. Any thoughts? Thanks.