This product contains a chemical known to the State Of California to cause cancer and/or birth defects or reproductive harm. www.p65warnings.ca.gov
The door hinge backing plate is the threaded plate that goes behind the door hinge that the hinge bolts to. Danchuk # 16836 will work on any 1957 classic Chevy.
Danchuk has the largest selection of quality 55, 56, 57 parts for your classic Chevy project.