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#2
04-28-2013, 08:19 PM
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Re: Muncie M22 CT Counter Transmission
John,
The 3968012WM code tag is for a 10 spline input and 27 spline output M22 for Corvette and Camaro use in 1970. Only the 70 454 Chevelle M22 transmission used the 3978766WO tagged 26 spline input and 32 spline output in 1970 in Chevrolet applications. All other 1970 Muncies were 10 spline input and 27 spline output and the 661 casting case was the majority casting used. Some early 70 Muncies used 660 castings. Chris 
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