Quote:
Originally Posted by frnkeore
Jerry,
There is only 3.75 mph difference, between a 3.4 and 2.95 gear ratio at 3800 rpm (28.38/24.63), with 28" diameter tires.
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The mph difference isn't the issue it is the torque, with the 3.4 providing more torque than the 2.95. But the difference is in the rpm change on the engine torque curve when shifting between gears, which is less. Flatheads have a somewhat flat torque curve, so not the biggest issue in the world, but still the close ratio is worth the effort to me. Again, depends on where your interest lie. I run a quick-change, so could play with the rear axle ratio if I wanted to, but I like the 4.11 I currently have setup. It's still is fine on the highway in OD.