M-20 with L-78 or L-72 & deep gear -How?

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M-20 with L-78 or L-72 & deep gear -How?

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07-09-2004, 04:15 PM

Jeff H

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Re: M-20 with L-78 or L-72 & deep gear -How?

I thought you had to specify if you wanted the wide ratio or close ratio(M20 vs M21) when you ordered the car. I know there are quite a few 69 Z28's out there with M20's in them with 3.73 gears like mine. If there is a general rule that GM used to determine when a car got the M20 vs the M21, then I'm not aware of it.

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