Long story short I had a shop install Hawk pads (f/r) on my car and didn't keep the oem pads b/c I heard Hawk has shims on the back of their pads and now I have just bought Project MU NS pads and they don't have any. Does Hawk have removable shims on the back of their pads or do I need to buy new ones. If so where?

 

The shims are an anti squeal devise of one design---If they come with shims use them , If not , Dont----Always apply spray antisqeal on the back though no matter what