Do your homework here at FABO. There's a lot of information about 273 rockers and how to fix them. I have a couple that the new adjusters loosen up a bit but not enough to cause any issues. They quiet down when it get's warmed up good. Now, a lot of these are sales and wanted threads but just scroll on by those. Search Results for Query: 273 rocker arm | For A Bodies Only Mopar Forum