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Old 14-02-18, 11:51
Grant Bowker Grant Bowker is offline
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Join Date: Jul 2006
Location: Ottawa, Canada
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Hopefully Barry will be able to remember the exact part number he used.
If he can't remember- my guess, based only on the 1-1/4" bore diameter and general shape, is that it might be a Wagner (or Raybestos) MC-4355. This is not certain but may help others in researching the answer. A posting on the G503 forum http://forums.g503.com/viewtopic.php?t=222244 claims the 4355 master is correct for the G506 Chevrolet as well as 3/4 and 1 ton pickups of the period - apparently not CMP correct but period Chevrolet.
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