Danchuk Firewall Pad Push-In Clips are the only way to correctly install the 1956-1957 firewall pads. Don't settle for an inaccurate substitute when installing that new firewall pad when we have the parts to get the job done right! Danchuk #611 will work on any 1956-1957 Chevy model. 1956 cars need 11 of these and 1957 cars need 12. Sold each.