Which rear end gear ratio is best?
The most popular rear end ratio in trucks today is the 3:55, which sort of averages towing power and fuel economy. This is a good ratio for the occasional towing or hauling individual. For a person who tows more often, and heavier loads, the 3:73 or 4:10 may be more appropriate.
How do I choose final drive ratio?
To find the ideal selection, multiply the final drive ratio by the redline speed in fourth gear (152 mph) and divide that by the top track speed (140 mph). This would yield a theoretical 3.33—which is close enough to the nearest available final drive ratio of 3.36:1.
Can you change final drive ratio?
What you can do is swap the actual final drive ratio (the front/rear differential) to a taller gear (numerically lower). The upside to that is better gas mileage and a higher top speed if you’re not electronically limited. Downside is it will hurt your acceleration in all gears.
What’s the final drive ratio on a Nissan 370Z?
The 5spd automatic has a 3.357 final drive ratio. The 6spd manual has a 3.538 final drive ratio. Are there aftermarket final drives? Yes. Currently only a 3.917 ratio gearing is available and is offered by several companies.
What’s the gear ratio for a super car?
3.73:1 is 3.73 revolutions of the driveshaft to 1 turn of the ring gear. 4.10:1 is 4.10 revolutions of the driveshaft to 1 turn of the ring gear. There are limited slip differentials, open differentials and locked differentials. These are the common rear axles for the super duties from 99-03.
Can you put 3.9 gears in a final drive?
It is not recommended to install the 3.9 gears into an automatic. However, many owners have had success installing the 3.5 gears, improving acceleration. Why is the 5spd automatic final drive different? Because the transmission has few gears and each is gear has a different ratio than the 6spd manual counterpart.
What are the numbers on the rear end differential?
These numbers specifically relate the ratio of the speed at which the pinion gear rotates to that of which the larger ring gear rotates within the differential.