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Old 04-02-2017, 03:00 PM   #1
gmc1971harwich
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Join Date: Nov 2008
Location: Cape cod, ma.
Posts: 394
Help identifying sm465

Hey guys I got the numbers off my transmission and want to try to find an inspection cover can u tell me what year this is from numbers are
Gm 3901127 with a 6 above gm
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