Speedway Power Brake Booster Conversion Adapter Plate
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If your car currently has manual brakes and you want power brakes, you have to build a new mount for the brake booster. With this plate you will be able to bolt your booster to your existing 2-bolt master cylinder mount.
Fits boosters with four bolts on 3-3/8" centers. Fits master cylinder mounts with 3-1/4" or 3-3/8" centers.