Do you mean the dust shields?
https://www.ecstuning.com/b-genuine-...t/34211158991/
https://www.ecstuning.com/b-genuine-...t/34211158992/
Those can be cut back so you can install them with out removing the axle, hub and bearing.
https://www.pelicanparts.com/BMW/tec...eplacement.htm
My original shields were cut back (outer lip removed) by a real hack job. Which caused the parking brake shoes to drag & tilt. Possibly Bigfoot assembled the car it seems.
When you go back together run the shoe adjuster up until you feel drag when installing & removing the rotor over the shoes, then back it off one click.