Improved Safety Over Single Master Cylinder Brand New, Not Rebuilt Deep Cup For Long Pushrod Must Also Order P/N 562125 When Used With Original Style 1959-61 Booster Original 1958-64's came with a small single master cylinder. If that cylinder fails, all the brakes on the car fail as well. Installation of a dual master cylinder improves braking and safety dramactically. Requires use of proporitioning valve and new brake lines.
| Make | Model | Years |
| Chevrolet | Bel Air | 1955 - 1972 |
| Chevrolet | Biscayne | 1958 - 1972 |
| Chevrolet | Brookwood | 1958 - 1972 |
| Chevrolet | Caprice | 1966 - 1972 |
| Chevrolet | Del Ray | 1958 |
| Chevrolet | Estate | 1969 |
| Chevrolet | Impala | 1958 - 1972 |
| Chevrolet | Nomad | 1955 - 1960 |
| Chevrolet | One-Fifty Series | 1955 - 1957 |
| Chevrolet | Parkwood | 1959 - 1960 |
| Chevrolet | Townsman | 1969 - 1972 |
| Chevrolet | Two-Ten Series | 1955 - 1957 |
| Chevrolet | Yeoman | 1958 |
