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#1
09-17-2004, 10:53 AM
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Re: decodeing a Vin on a Muncie from 1970???
What is the main case casting number? 65-67 should be 3885010 1970 would be either 3925660, or 3925661. Should also have the ratio designator (sp)after the date code. (69-74) A = M20, B = M21, C = M22. 661 would also have a fine (26) spline input, turbo 400 style output, and a drain plug.
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Dennis 69 Nova 355, M-21, 3.90 12 bolt 68 Chevelle SS 396 4 sp 
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