Start / Terms / Differential Ratio
Enter the final drive (differential) ratio. The final drive ratio is defined as the ratio of transmission output shaft (driveshaft) revolutions to drive axle revolutions.
For example, if the differential ratio is 3.7:1 (3.7 to 1) then for one turn of the axles the driveshaft turns 3.7 turns. And for one turn of the driveshaft, the axles turn 1/3.7 or 0.27 turns.