Differential gears are an essential component of your vehicle. They work to make sure that the engine turns at the same rate as the wheels, which is why they are called the differential. However, there are many different types of gear ratios for various purposes.
This post will help you understand what gear ratio means and how it can be used to determine what kind of axle gears or tires should be installed on your car or truck.
Gear Ratio
Gear ratio refers to the number of teeth on a gear multiplied by the wheel or ring gear. It can be calculated by dividing the number of teeth on the gear by the diameter of its wheel. Depending on tire circumference and rear-wheel drive, this determines how fast or slow your vehicle will go at any given speed.
The gear ratio is calculated: The number of teeth divided by tire circumference equals gear ratio. Gear Ratio = #teeth/tire circumference
What Is the Best Gear Ratio for 37-Inch Tires?
The right gear ratio will depend on your vehicle, driving habits, and the overall size and type of tires you are using. If you have 37-inch tires, the best gear ratio is probably different than if you have 35-inch tires. Consult with a professional to determine the best gear ratio for your specific needs.
What Gear Ratio Is Needed for 35-Inch Tires?
For the best performance, you will want to find a gear ratio that is close to the one recommended by the manufacturer of your vehicle and tire size. 35-inch tires require a different gear ratio than larger or smaller tires. A lower gear ratio will give you more power off the line, while a higher gear ratio will improve fuel economy.
What Does a 1:1 Gear Ratio Mean?
A 1:1 gear ratio means that the engine and ring gear spin at equal speeds. This is considered a direct drive, which means you are running your vehicle with both an axle ratio of 0:0 as well as a final drive ratio of 0:0 for this particular example.
A simple formula to calculate Gear Ratio or Axle Ratios
The numerical equivalent of any part about another can be calculated using the following formula ? = W ÷ N:
Where A=the first number (static reduction), Bi=Gear diameter, Bf=Ring Gear diameter, Cf=(Crown Wheel dia.)(final drop).
Then take that answer and divide it by 100% and then multiply it by itself to find out what gears/axles you need to run to achieve the desired tire size.
For example: ? = 38″ ÷ 37″
A = 38″ ÷ 37″
A= Gear Ratio or Axle Ratios, which is the same thing. This can also be written as ???? (Rear) and ???? (Front)
? = 38″ ÷ 37″
A = 13.333
Then take that answer and divide it by 100% and then multiply it by itself to find out what gears/axles you need to run to achieve the desired tire size.
What Is a Different Gear Ratio Best for Fuel Economy?
The best fuel economy gear ratio is a high gear ratio. This means that the car will move slower but use less fuel. A lower gear ratio will make the car move faster, using more fuel.
What Is the Best Rear-End Gear Ratio for a Chevy Silverado?
A Chevy Silverado is a popular full-size pickup truck. When it comes to rear-end gear ratio, a few different options will work well with this vehicle. The best choice for your Chevy Silverado will depend on the size of your tires and what you plan to use your truck for.
If you have smaller tires (e.g., 33-inch), then a gear ratio of approximately three times the tire’s diameter is ideal.
If you have larger tires (e.g., 38-inch), a gear ratio of around four times the diameter is ideal.
What Axle Ratio Gears Should You Run for 38-Inch Tires on a 4×4 Ford F-150?
If you have a Ford F-150 and want to put some 38-inch tires on it, you will need to find the correct axle gear ratio. The gears that come stock with the truck might not be ideal for your new setup, so you’ll need to do some research to see what is available. Many different gear ratios are available for this application, so finding the right one can be tricky.
You want to make sure that you get a gear ratio that is high enough so that your truck doesn’t bog down when you’re trying to pull something or go off-road, but also low enough so that you don’t waste too much gas.
Getting Started With Gear Ratio Chart
Choosing a gear ratio is essential for a truck’s performance and cost-efficiency. It determines how fast your vehicle can go, as well as the speed at which it takes off from a standing stop.
The best gear ratio for 37-inch tires will be different from what you should use if you have 35-inch or even 40+-inch tire sizes, so make sure that you know those numbers before choosing one. When making this decision, you will also want to think about fuel economy and budget, as they are both huge factors in determining what gear ratios work best for you.