I am in the middle of removing and cleaning the parking brake components. I noticed a few rust-generated holes in the backing plate, especially on the left hand, driver side backing or back plate. Where can I find inexpensive replacements? Rockauto.com does not appear to carry them. Nissanpartsdeal.com has them listed at US$104.16 each. In the meantime, I am thinking of using duct tape to block the holes. Anybody got a better idea?