Power Brake Booster- 1969 Mercury Cougar-BENDIX-Concours-Restored. We have them rebuilt in North America. 1969 Bendix Power Brake Boosters can be used as replacements for 1967/68 Midlands. Early 1969’s may have also used Midland Brake Boosters, however as Midland had better stopping power, but shorter life span 1969 also introduced the Bendix Power Brake Booster. This item has a $250 Core Charge which is refundable if a complete rebuildable BENDIX (same model/year) core is provided.