A shim for use in a braking subassembly comprising a metal backing plate comprising a first side surface, wherein the shim comprises at least one flexible tab extending from an edge thereof for assisting in coupling the shim to the backing plate along a backing plate side surface thereof, and wherein the at least one flexible tab comprises an integrally formed and extending finger therefrom, wherein the finger has a leading edge that frictionally engages the backing plate edge surface when the shim is subjected to a separation force, which, relative to the backing plate, has a directional component at least essentially parallel to and in the same direction as the direction in which the finger extends; whereby the shim is resisted from separating from the first side surface of the backing plate at least in part by the frictional resistance of the leading edge of the finger against the backing plate side surface.