Contents

- 1 What is the best axle ratio for racing?
- 2 What is a 3.31 axle ratio good for?
- 3 Are 4.10 gears good for racing?
- 4 Are 3.73 or 4.10 gears better?
- 5 Is 3.42 or 3.73 better?
- 6 Are 3.73 gears good for highway?
- 7 What gear ratio is best for fuel economy?
- 8 What gear ratio is best for speed?
- 9 Is 3.73 a good gear ratio?
- 10 Are 4.10 gears good for 35s?
- 11 Does gear ratio affect horsepower?
- 12 What is the difference between 3.73 and 4.10 gear ratio?
- 13 Do larger tires lower gear ratio?
- 14 What is the best final drive ratio?
- 15 How fast can you go with 4.10 gears?

## What is the best axle ratio for racing?

If it’s a daily driver, chances are you’ll want to keep your gear ratio at 3.23 or below for optimal performance and lower cruising RPMs. For street and strip applications, a popular choice ranges between 3.42s and 3.90s, giving you that extra oomph on the track while maintaining a tolerable cruising RPM on the street.

## What is a 3.31 axle ratio good for?

Normally, the 3.31 would get you better gas mileage, on highway. But, with the 3.55 you will get a bit more pulling power so less time at higher RPM to get your trailer moving and when going uphill. If most of your towing is flat highway, the 3.31 should do you fine.

## Are 4.10 gears good for racing?

Most late model Mustangs and many other sports cars come equipped with standard 3.55 gears in their rear differential, however by adding 4.10 gears they can effectively make their drag times faster and deliver more power to the wheels faster.

## Are 3.73 or 4.10 gears better?

4.10 is the typical gear ratio for a high-performance vehicle like a sports car or SUV because it provides better acceleration than 3.73 because of the faster second and third gears, which provide more torque at lower speeds to accelerate from a stop.

## Is 3.42 or 3.73 better?

The 3.42 is fine for towing smaller boats, plus you will get better gas mileage for everyday driving. If I were towing frequently on hilly roads, I might would go for the 3.73 for better gas mileage while towing, but the 3.42 should be fine with a 205.

## Are 3.73 gears good for highway?

Is 3.73 gears good for towing? FACT: A 3.73 axle ratio is ideal for towing heavy loads on flat terrain and will produce increased fuel economy during steady-state, long-distance highway driving.

## What gear ratio is best for fuel economy?

The lower the number, the better fuel economy, and the higher the number the more towing power you have, but fuel economy suffers. For instance, a 3:31 gets better fuel economy than a 3:73.

## What gear ratio is best for speed?

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.

## Is 3.73 a good gear ratio?

FACT: A 3.73 axle ratio is ideal for towing heavy loads on flat terrain and will produce increased fuel economy during steady-state, long-distance highway driving.

## Are 4.10 gears good for 35s?

4.10 will be just fine for 35’s and Especially if you get a 4:1 transfer case for off road adventures. I recently went from 3.21 to 4.10 with 35″ Terra Grapplers. It made a huge difference on my 2dr with manual transmission, It’s just about perfect around town. I run at about 2400rpm at 70 in 6th gear now.

## Does gear ratio affect horsepower?

Changing gears, or changing gear ratios, changes the Torque output. (The lower the gear, the more torque you have available.) Horsepower is a function of both torque and speed. Increasing torque by shifting to a lower gear also means that the rotational speed is lower, thus horsepower does not increase.

## What is the difference between 3.73 and 4.10 gear ratio?

Well-Known Member. 4.10s are going to accelerate faster and decelerate faster on lift. However the trade off is greater fuel consumption per mile driven and higher engine speed per given road speed. In basic terms the 4.10s will feel quicker and 3.73 will feel faster.

## Do larger tires lower gear ratio?

If the Tires Are Bigger, the Gears Should Be Lower. Going to lower gears (ironically, a numerically bigger ratio) will increase the rpms of an engine (taking for granted the same diameter tire and going the same speed).

## 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.

## How fast can you go with 4.10 gears?

62 5th gear and 3.73 rear gears yields a theoretical 191mph,. 62 5th gear and 4.10 rear gears yields a theoretical 174mph. If your goal is to make your car as fast as possible (top end), that formula will probably help.