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Old 10-02-2010, 06:57 PM   #2
turp mcspray
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Join Date: May 2007
Location: Rapid City South Dakota
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Re: what years of 12 bolt will fit

According to the interchange book...72 chevy/gmc truck and 72 blazer/jimmy. One year only. I'm not sure what the difference is between other years. 1970 and up use the same length axle shaft, so it must be some thing minor like a brake issue or something. I think the book considers something to be interchangeable, as something that doesn't require a single bolt to be changed.
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