Gary, I am wondering about the "Z" wide ratio gear set. Is that something I could buy from them and stuff into an existing M20/M21 case? Or is the super case required?
I really want the looks of a factory M20 with the Z series gearing. The car is light, small block, and won't be raced.
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1972 SS 454 Chevelle LS5/M21/12 bolt 3.73 posi
1969 Malibu COPO L72/M20/12 bolt 3.31 posi
1968 Malibu LQ9/4L80E/12 bolt 3.73 posi
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