Ok, Sorry I’m thinking of getting the same brake setup as you so I want to understand the setup too, better for me to learn now.
Please confirm if you have the 140-7144 brake setup, because here are the instructions in PDF form.


https://www.jegs.com/InstallationInstructions/900/950/950-140-7144-D.pdf


According to the instructions it states you need to remove the stock floating retainer and install the one that comes in the kit. According to the figure 7 both the backing plate and the bearing retainer is used to retain the bearing. This is stated in the paragraph to the left of figure 7.

Right?

Sorry to the OP this is way OT now. Should of started a new topic.





Anyone for pancakes?