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Old 03-28-2013, 05:39 PM   #3
OrrieG
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Join Date: Jun 2006
Location: Idaho
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Re: What year is this GMC?

The date code translates to L291 is December 29 19x1 casting date. So it could be 41 or 51. The guys over at oldgmctrucks.com can help you narrow it down.
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