How Gear Ratios Work?

gear ratio = rotations of a driver gear : rotations of a driven gear. For every rotation of the 45-tooth gear, the 15-tooth gear must rotate 3 times. ... A gear ratio is always given as the ratio of the rotations of the driver gear to the rotations of the driven gear.

Are 3.73 or 4.10 gears better?

4.10s are going to accelerate faster and decelerate faster on lift. However the trade off is greater fuel consumption per mile driven and higher engine speed per given road speed. In basic terms the 4.10s will feel quicker and 3.73 will feel faster.

Is it better to have a higher or lower gear ratio?

Final Drive Ratio

A lower (taller) gear ratio provides a higher top speed, and a higher (shorter) gear ratio provides faster acceleration. . Besides the gears in the transmission, there is also a gear in the rear differential.