GM factory large Alternator pulley - The Supercar Registry

11-10-2018, 10:13 PM

William William is offline

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Join Date: Jun 2001

Location: New Berlin WI USA

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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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