What Is A 3.73 Gear Ratio Good For?

So, a truck with optional 3.73 gears will tow a heavier trailer than one with 3.55 or 3.21. But it will also use more fuel in all situations because the engine’s rpm will be higher.

Is a 3.73 gear ratio good for towing?

in the back of the truck, you would want the highest ratio (3.73 instead of 4.30) for improved fuel economy because you will not need the torque. However, if you are towing a 9,000-lb. trailer, you will need that extra torque to get the trailer moving, especially up steep grades (4.30 instead of a 3.73).

Are 3.73 or 4.10 gears better?

3.73 VS 4.10 Ratio

Is 3.55 or 3.73 gears better?

3.55 gears will give you better gas mileage while 3.73 gears give you better acceleration and performance.

What gear ratio is best for performance?

In the real world, typical street machines with aspirations for good dragstrip performance generally run quickest with 4.10:1 gears. Lower gears are required if the car is very heavy, or if the engine makes its power at the upper end of the rpm scale.

What gear ratio is best for highway?

If getting the best fuel economy is priority, then choose the lowest numerical number offered, such as 3.08, 3.23 or 3.31. This applies to highway driving; city driving mpg isn’t really affected by the axle ratio. If you do a mix of both, go with the “standard” axle ratio offered by the manufacturer.

What is a good gear ratio for highway?

For on-highway linehaul, the range tightens to a fuel friendly 2.26 through 3.42 for the most common ratios. “For on-highway, direct drive, it starts all the way down at 2.26 and up to 3.08 or larger,” Garrison says.

What is the best rear axle 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.

What axle ratio is best?

The higher the ratio, the more revolutions per minute. Towing: For pickup trucks released after 2010, the best axle ratio for towing falls somewhere between 3.55 and 3.73. This range provides good acceleration for V8 gas and diesel engines.

What gear ratio is good for hills?

You will need even lower gear ratios for steep hills that are 8% or more. The most preferred gear ratios on such tracks are 50/34, 40/34, 36/40, 34/36, 34/32, 34/30, and 32/20. However, remember that using gears with such a low ratio will cause you to pedal more, but it will require less effort.

What gear ratio is better for torque?

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.

What is the hardest gear ratio?

The Hardest Gear
This is expressed as 4.55 : 1 meaning that for every 1 turn I make of the pedals at the front, I will turn the back wheel 4.55 times. This is the gear I would use on the flat. It is going to take quite a lot of effort to get it moving, but when I do I will move quickly.

What is the best gear ratio for street and strip?

If we have a daily driver, 2.55 to 3.25 gear ratios typically work best, whereas a street/strip application we would usually use a 3.42 to a 3.90 gear ratio, and race applications most commonly use a 4.10 and above gear ratios.

What gear ratio gives more speed?

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. This is known as the final drive, differential gear, Crown Wheel Pinion (CWP) or ring and pinion.

Do gear ratios increase power?

A Gear Ratio can increase the output torque or output speed of a mechanism, but not both. A classical example is the gears on a bicycle. One can use a low gear that allows one to pedal easily up hill, but with a lower bicycle speed.

Do higher gears have more power?

In general, you’ll want to keep this rule of thumb in mind: the lower the gear, the more power you have available. The higher the gear, the faster your engine runs! With both manual and automatic transmissions, you’ll generally move from lower to higher gears as you accelerate.

What’s the best gear ratio for gas mileage?

If you just want the best mpg and never tow or haul a load, get the tallest (3.23-3.42) ratio offered.

How much does axle ratio affect gas mileage?

Manufacturers use the standard axle ratio when setting fuel economy estimates, but fuel economy can drop by 1-2 miles per gallon when changing axle ratios.

Do larger tires lower gear ratio?

When taller tires are installed on a truck but the axle ratios stay the same; the effective gear ratio is reduced. This means the engine is forced to operate below its power band, and performance and fuel economy suffer as a result.

What gear should you be in at 40 mph?

Fourth gear
First gear—0 to 10 mph. Second gear—10 to 20 mph. Third gear—20 to 30 mph. Fourth gear—30-40 mph.

What does a 3.73 axle ratio mean?

The number is expressed in a ratio, which represents the number of teeth on the ring gear divided by the number of teeth on the pinion. For example, a truck with a 3.73:1 gear ratio means that the driveshaft will turn 3.73 times for each complete wheel spin.