**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.

## What does 4.10 gear ratio mean?

Gear Ratio: **the ratio of the ring and pinion gears in the rear axle**. So, if you have a 4.10:1 (sometimes 4.10) rear axle, the pinion will turn 4.10 times for every single turn of the ring gear or in other words, for every 4.10 turns of the driveshaft, the rear wheel will spin once.

## Are 4.10 gears good for racing?

Installing 4.10 gears **improves the car’s performance on the track but with negligible effects to the highway driving**. If your car is equipped with an overdrive, you may not even notice a difference in gas mileage with the new higher gearing.

## What’s the difference between 4.10 and 4.11 gears?

4.10 will have 41/10 teeth so more, but smaller for the same diameter ring. 4.11 will have 37/9 teeth which will be larger. The 4.10 is a stronger pinion.

## How fast can you go with 4.11 gears?

The Covair engine in good shape should be able to run continuously up to 4,000 RPM. With a 4.11 and a 7.00X13 tire that is about **69 MPH** based on some rough calculations, or O.K. for freeway driving, but the engine will sound busy.

## What are 3.92 gears good for?

4) 3.92 has 3 unique lower gears for towing. 5) Speed range that 3.21 is better at towing: 31-38 MPH, 48-57 MPH. 6) Speed range that 3.92 is better at towing: **0-30 MPH, 39-47MPH, 58-70 MPH**.

## What are 4.11 gears good for?

If you go to a 4.11 you will **increase your RPM at any given speed**. Nice if you need more power at highway driving, climbing hills, restarting at stoplights etc.. 4.11’s make your truck “feel” like you have more HP from stoplight to stoplight and pulling hills.

## What are 3.73 gears good for?

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 is a good street strip gear ratio?

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 is fastest?

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 is best for speed?

The gears determine the amount of power available from the engine. First gear provides the most pulling power but the least potential for speed, whilst **fifth gear** which provides the least pulling power allows the greatest range of speed.

## WHAT WILL 4.10 gears do?

Lower 4.10:1 gears would **make the engine turn 4.10 times for each turn of the tire**, so lower gears cause higher engine rpm at any road speed. If you continue to visualize the example of removing lug nuts with the long or short wrench, it will help you understand how to gear your car for quarter-mile acceleration.

## What gear ratio is a Dana 60?

The Dana 60 carrier split is at **4.56:1**-and-up ratio gears.

## What is a 4.11 rear end?

A 4.11 refers to **a 4.11:1 ratio**. This means that the driveshaft turns 4.11 times for each time the axles turn once. This yields strong acceleration but, depending on transmission ratios, can mean the car cruises at high RPMs.

## Is it better to have a higher or lower gear ratio?

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’s better 3.92 or 3.21 gear 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.

## What are 3.21 gears good for?

5) **Speed range that 3.21 is better at towing: 31-38 MPH, 48-57 MPH**. 6) Speed range that 3.92 is better at towing: 0-30 MPH, 39-47MPH, 58-70 MPH. 2) 3.21 has “an extra” overdrive gear: The 8th gear in 3.92 is the 7th gear in 3.21, thus effectively mean the 8th gear in the 3.21 is an extra gear to the 3.92.

## How do I choose gear ratio?

The conventional procedure for selecting gear ratios is to **pick ratios that run the engine rpm to redline at the end of the medium and longest straights, and pick the lower gear ratios to minimize the rev drop at each shift**. This method minimizes the number of shifts per lap.

## Are 4.11 gears good for drag racing?

**A car at the drag strip with 4.11 gears and a 300 HP engine will launch harder and will be quicker than a car that has 500 HP and gears that are way too tall**. 80% of the race is the first 80 feet! If you can’t launch and GET to your speed quickly, you won’t run a good elapse time.

## What is a 3.55 gear ratio?

Technically, the number should be expressed as a ratio, such as 3.55:1, meaning **the drive shaft turns 3.55 times for each turn of a wheel**. But that gear ratio would most commonly be referred to as “3.55” or simply “three fifty-five.”

## What does 411 gear ratio mean?

A 4.11 rear means that **the wheels will turn 4.11 times for every revolution of the driveshaft**. A 4.11 rear will help alot for towing but your truck will rev higher, decreasing gas mileage.

## How many teeth does 373 gears have?

41-11 Teeth

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 |

## Can I run 33s on 3.73 gears?

With 3:73 gears and 33″ tires **you are fine**.

## How can you tell the difference between a 3.73 and a 4.10 gear ratio?

3.73, **for every 373 rotations of the driveshaft you get 100 rotations of the axle, and for 4.10, for every 410 rotations of the driveshaft you get 100 rotations of the axle**. Now, this means that your engine is spinning faster on 4.10 rather than 3.73.

## Does gear ratio affect horsepower?

**A higher numeric axle ratio (4.11:1) keeps the engine running in the higher horsepower range**, thus improving performance.

## What is the average 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.

## Why is the Ford 9 so good?

The Ford 9-inch is desirable because **it has a removable carrier, which allows quick rear end changes**. Many racers carry an extra carrier assembly with a different rear end ratio so they can try different combinations on the same day while at the track.