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Old 10-19-2020, 01:40 PM   #12
Mart
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Join Date: May 2010
Location: Solihull, England.
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Default Re: 1936 Ford rearend gear ratio and speed

Engine revs isn't the only consideration.
Engine noise may be reduced but road noise, tyre noise, wind noise, road/tyre induced harshness (vibrations) will not be. You need to consider the brake performance too higher speeds demand better brakes, especially if in and amongst modern traffic. Tyres, too. A tyre that is perfectly happy at 55 mph might not be too happy at 70 plus.

Generally, though, a taller axle ratio will make for a more comfortable ride, but won't necessarily make the cruising speed much higher.

It just makes it more comfortable at any given speed, providing the motor has the torque to pull that speed.

Mart.
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