On my Challanger found that rear brakes might need servicing, found self adjusters were no more, replaced with manual adjuster star wheels from a Chevy or some such,,,both were left side adjusters to boot. Bubba did it.

Car was a Super Stock E car from 1970 thru 1973. This is what they use to do to reduce drag a bit. Fronts were that way to be before converting to disc.