Backing Plate: Specifications
| Leading/Trailing Drum Brakes | Backing Plate Mounting Bolt | 52 Foot Pound-Force (ft.lb) |
| Duo-Servo Drum Brakes | Backing Plate Mounting Bolt (JB6) | 118 Foot Pound-Force (ft.lb) |
| Backing Plate Mounting Bolt (JB7, JB8) | 118 Foot Pound-Force (ft.lb) |