Amazon.com: 2-Pk Trailer Brake Backing Plates 12 in. (2LH 2RH) w/4 Hub/Drum Kit 8 Lug on 6.5 : Automotive
1964-1981 All Makes All Models Parts | RE107 | 1967-81 Chevrolet Camaro/Pontiac Firebird & 1964-79 Chevy II/Nova; Rear Drum Brake Backing Plates; 9-1/2" X 2" | Classic Industries
10" Trailer Drum Brake Backing Plate
Drum Brake Backing Plate - Left (Driver) Side - Vanagon
ACDelco 19316573 ACDelco Drum Brake Backing Plates | Summit Racing