These GM single diaphram brake boosters suit 1964-1972 GM A-F-X body cars and features a 9" outside diameter booster which can produce up to 1000 PSI with 18" of vacuum. A firewall mounting plate is included and they are available in a variety of finishes.

  • Master cylinder bolt patern = 3-3/8" square bolt pattern
  • Great replacement or addition to your manual brake car

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