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Old 01-10-2019, 04:48 PM   #19
supereal
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Join Date: Jul 2014
Location: Iowa
Posts: 1,634
Default Re: Overdrive in 47 Coupe

I have a Ryan 3 to 1 OD in my '47. I am not sure they are still made. I use mine on the highway only. A word of caution: if you do lots of highway driving, but sure that the brakes and handling are in top shape, and that you have a "third" stoplight installed. I live two miles from I-80, but try to stay off in my '47. It simply isn't safe to mix old vehicles with today's traffic and try to stay at the usual 70-80 mph required.
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