Backing Plate with Aftermarket Discs

[dhardison]

I'm installing C4 rotors with C5 calipers on the front of a factory drum brake Nova (using the drum spindles). The car will see decent street/highway duty and its fair share of wet road conditions.

Is it necessary (or even desirable) to install backing plates like most factory discs use? Pros/Cons?



Thanks,
Dan