## Do 4.10 gears make a difference?

Put 4.10:1 gears in the same car, and engine speed increases by 1060 rpm—the difference is 40 rpm per mph with the 3.08s versus 53 rpm per mph for the 4.10s.

The greater rate of rpm increase versus road speed provides greater acceleration.

…

The higher gears will reduce engine rpm versus road speed..

## What are 4.10 gears good for?

Installing 4.10 gears improves the car’s performance on the track but with negligible effects to the highway driving. If your car is equipped with an overdrive, you may not even notice a difference in gas mileage with the new higher gearing.

## Does 3.73 gears make a difference?

Yes, while it’s a noticeable improvement in seat of the pants acceleration, you will run out of rpms quicker with 3.73s. In the long run you’ll find yourself looking for more engine rpms. The increased torque multiplication of lower gears will help make better use of a higher revving engine combo.

## What is the difference between a 3.73 and 4.10 axle?

The ratio is the number of teeth on the driven gear (ring) divided by the number of teeth on the drive gear (pinion). … So for gear ratio of 3.73, for every one turn of the ring gear, the pinion will turn 3.73 times and for gear ratio of 4.10, for every one turn of the ring gear, the pinion will turn 4.10 times.