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Old 09-04-2017, 03:55 PM   #4
V8 Bob
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Join Date: May 2010
Location: Granger (Northern) Indiana
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Default Re: 1949 Mercury differential ratios?

Quote:
Originally Posted by scicala View Post
I find it hard to believe that 3 speed standard cars with and without overdrive used a 3.91:1 read end ratio. Sounds like the ratio for overdrive only if anything to me.

Sal
The standard non-od 3:73 Ford car ratio results in engine rpm very close to the Merc's 3:91 with the larger OD Merc tires.
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