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final drive ratio (3rd)
https://www.slantsix.org/forum/viewtopic.php?t=18858
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Author:  Bren67Cuda904 [ Thu Jul 27, 2006 7:00 pm ]
Post subject:  final drive ratio (3rd)

What is the likely 3 rd gear ratio? Is it 1:1? (My car) If unknown what information is needed to know?
Whats the max RPM I should turn a somewhat daily drivers engine? I don't want to kill it over the long haul, but I don't mind some RPMs. I know MPG will go down the higher the RPMs. I travel the highways at about 70 a good portion of the time.

Author:  Jeb [ Thu Jul 27, 2006 7:12 pm ]
Post subject: 

With a non overdrive application the final drive is 1.1.

I would go with 3.21 gears if you do any highway driving and do not have an overdrive. 3.55's or lower would be just too dang noisy and it will be a gas hog also. With that long stroke a 225 doesn't like crusing at over 3000 RPM for long periods of time.

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