What is the best differential gear ratio?
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 know what ratio my diff is?
Turn the wheel TWO revolutions and count the number of driveshaft turns. The number of driveshaft rotations will help you determine your rear axle ratio. For example, if it turned 3 and a half times, it’s a 3.50:1 ratio. If it turned 4 and a quarter times, it’s a 4.25:1 ratio.
What diff ratio is faster?
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.
Is a higher differential ratio better?
Gear ratios can be boiled down to a single statement: Higher ratios (with a lower numerical value) give better torque/acceleration and lower ratios allow for higher top speeds and better fuel economy. Higher ratios mean the engine has to run faster to achieve a given speed.
Is a 3.92 rear axle ratio good?
But opt for the higher 3.92 axle ratio and that same truck packs a higher towing capacity of 9,930 pounds. The extra towing capacity comes about because the increased engine spinning helps improve off-the-line acceleration and pulling power when carrying heavy loads.
How many teeth does a 373 ring gear have?
41-11 Teeth
Technical Details
Manufacturer | Motive Gear |
---|---|
Brand | Motive Gear |
Model | Motive Gear D30-373 Rack and Pinion, 41-11 Teeth, 3.73 Ratio |
Item Weight | 2.2 pounds |
Product Dimensions | 15.5 x 11 x 5.25 inches |
What is the best final drive ratio?
For most street performance applications, a 10:1 final First gear ratio is usually considered optimal. The disadvantage of operating a 4.10:1 axle ratio on the street with a 1:1 high gear is excessive freeway engine speed.
Which is better 3.21 or 3.92 axle ratio?
There’s a reason the 3.92 is an at-cost option. It’s the most preferable ratio. Having said that, if MPG is your primary objective, the 3.21 is the way go to with the diesel. On a gas engine, the RPM range is so great that gear ratio doesn’t make a lot of difference in efficiency.
Is 3.92 or 3.55 gear ratio better?
Those that are looking to squeeze every bit out of a gallon of diesel will recommend the 3.55. People that tow heavier loads or up steep grades in the mountains will recommend 3.92. There is one other thing that affects your overall final gear ratio.
What are the aftermarket differential ratios for the Rover?
Common aftermarket differential ratios for the Rover differential carrier – 4.1:1 and 4.75:1 Standard Series transfer case high range ratio – 1.15:1 (making it an under drive).
What is the range ratio of a rover transfer case?
Common aftermarket differential ratios for the Rover differential carrier – 4.1:1 and 4.75:1. Standard Series transfer case high range ratio – 1.15:1 (making it an under drive) .
How do you find the differential ratio of a gearbox?
Divide the number of teeth on the ring gear by the number of teeth on the pinion gear and you get the differential ratio. Series Gearbox Ratios: (Does not include 109 Stage I V8 which uses LT95) *Note: The LT 95 has an integral transfer case.
How many types of Axel differentials used on Land Rovers?
There were 3 basic types of diffs used on Land Rovers, the RR 4.6HSE is not included in this description as it had a lot of unique components. The 3 types of axel differentials used are the standard Rover diff, Salisbury diff and the ENV diff.