To be honest I haven't looked at the rear brakes, but they're probably the same as other Chrysler products.
The bracket is a cast iron piece that has seats for the stainless spring clips that in turn hold the "ears" of the pads. On other models, I've removed the caliper bracket and had it lightly media blasted just to remove the corrosion then used high heat primer and caliper paint for the complete bracket. It then gets cured in the oven at 350F for about 20 minutes.
When reassembling the brakes, a liberal amount of brake lube between the spring clips and the bracket stops noise and lubricates the two surfaces to keep abrasion of the paint to a minimum.
So far, an annual "remove and clean" is all I have done and the paint has stayed on for 3 years now.
I know the GC is a lot tougher on rear brakes than my other MoPars, but if you can keep the paint on for at least a year, there is less to clean.
My 2 cents.