Thread: ez way to tell what the ratio is?
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Old 08-07-2008, 11:19 AM
GM Duraturd GM Duraturd is offline
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Join Date: Nov 2007
Location: New Riegel, Ohio
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mine says 4L12 ??? I have also wondered the same thing. When I bought the truck the prev. owner said it has 4.10's and it drives like 4.10's, but what is the 4L12?
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