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Alternator de-coding

533 Views 3 Replies 3 Participants Last post by  jaf6738
I did a search but cant seem to find what seems like a simple answer. How do you break this down? Click on the thumbnail to enlarge. I get the 37 amp, and the 12 volt neg ground but not the rest. Is there a site to look?
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Also remember GM did not use "I" for stamped dates because it would too closely resemble a "1". Therefore, September is "J" on distributors, alternators, etc. and "I" only on cast parts like block, heads, manifolds, etc.
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