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Old 11-10-2018, 09:13 PM
William William is offline
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There were two versions:

67 used a 3.6" diameter pulley with a hard-stamp part number 3829387 AI
68-up used a 3.2" diameter pulley, no part number.

Both were silver-cad plated. GMPD serviced 3829387 but it was incorrectly plated.

FWIW one of our customers was a rebuilder of starters and alternators. One of those pulleys was also used in aircraft applications.
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