The Rim Roof that is what they called it were I worked in automotive production was not any thing near or to do with the location of when then axle was put in the car. So was there another sheet of paper someplace in the plant to tell the person he needs to paint the drums and another paper squed for the person for the front end. On my Challenger it has front drums, came with Rallye Rims and under were I painted them black the drum is painted completely on the out side in RED. Why use the color RED, why not just save the money and source paint them or leave them alone. Maybe they did not like the rust showing through the RIms. They could of used black instead of red. There must be some reason Chrysler used RED.