Rear end ratios

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  • #4226

    Anonymous
    Inactive

    Would a 392 rear be better or worse than a 427 rear in a 1950 merc with overdrive?

    Bob

    #4227

    It depends upon what you want to do. 4.27:1 would be great for drag racing, especially on the 1/8 mile tracks, but the 3.92 is a whole lot better if you plan to drive the car on the street, and maybe get some half way acceptable gas mileage. I don’t have a book that covers 50 specifically, but 54 had 4 ratios, 3.32,3.54, 3.90, and 4.10.

    #4232

    John is absolutely correct in his analysis. I was able to find the rear gear ratio for your car and it would be the 3.92 from the factory.

    #4233

    Apologies to all on my previous post. I misread the chart I was using. The rear end gear ratio for cars with overdrive in 1950 was 4.27. Sorry ’bout that.

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