Table of Contents

## How do I know what gear ratio My Chevy has?

Count the teeth on the small gear in the forward part of the axle housing, called the pinion gear. Count the number of the teeth in the big ring gear attached to the differential. Divide the number of teeth on the pinion into the number of teeth on the ring gear. This is the gear ratio.

## Can I look up gear ratio by Vin?

While it may be possible to derive information about an auto’s gearbox ratio from its VIN, that depends largely on the information the manufacturer includes in the vehicle descriptor section (VDS) of the VIN.

## How do I find my axle ratio Silverado?

Method 1: Count the number of teeth on the ring gear and the pinion. Divide the number of the ring gear’s teeth by the number of the pinion’s teeth. This will give you the axle ratio.

## How do you find the gear ratio?

To calculate the gear ratio: Divide the number of driven gear teeth by the number of drive gear teeth. In our example, it’s 28/21 or 4 : 3. This gear ratio shows that the smaller driver gear must turn 1,3 times to get the larger driven gear to make one complete turn.

## How do you determine gear ratio?

## How do I determine my rear axle ratio?

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.

## How do you calculate a gear ratio?

Gear ratio can be calculated by dividing the diameter of both gears or their number of teeth. If gear ratio > 1 then it’s speed reduction, if smaller then it’s for system to speed up, if equal one it’s just for transmitting power with same speed to transmit it just to another location depending on geometry of design.

## How do I find my gear ratio?

Divide one teeth count by the other. Now that you know how many teeth are on each gear, you can find the gear ratio relatively simply. Divide the driven gear teeth by the drive gear teeth. Depending on your assignment, you may write your answer as a decimal, a fraction, or in ratio form (i.e., x : y).

## How do you calculate tire ratio?

The first number on a metric tire is the width in millimeters. Divide this number by 25.4 to get the inch equivalent as there is 25.4 mm in 1 inch. The third number generally preceded by an “R” is the wheel diameter. The sidewall or aspect ratio are used in metric tire sizes to determine the overall height of a tire.

## What is the gear ratio of a rear end?

1. Race cars have rear end gear ratios of around 4.11 to 1 or higher. This is necessary due to the tall tires used at the drag race track. The average car on the street has a rear end gear ratio of about 3.73 to 1. 2. Traction is affected by gear ratio. Higher gear ratios, such as 5.13 to 1, help to get the car moving.