Question: What Gear Ratio Is Best For Fuel Economy?

Is 3.55 or 3.73 gears better?

3.55 will give you a little better gas mileage on the highway and slightly more highway oriented performance.

3.73 may be better for towing, lower end power (off the line acceleration), and may result in worse gas mileage on the highway..

What are 4.11 gears good for?

4.11:1 is a “lower” gear ratio, meaning you have more torque, lower top speed, and you will generally consume more fuel. Usually people put 4.11:1 gears in trucks to be used off-road for the extra torque and the better “crawling” capabilities.

Does higher gear ratio mean faster?

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.

Are 3.42 gears good for towing?

You won’t have any trouble towing you rig with a 3.42 rear end. You may need to stay in Drive rather than overdrive when pulling, but that was a requirement of Chevy up until 1997 anyway. In a half ton truck, you will only find 3.73 gears anyway. You have to go to 3/4 ton to get the 4.10 gears.

Are 3.73 or 4.10 gears better?

The difference between a 3.73 vs 4.10 gear ratio can cause many questions for the automotive enthusiast….3.73 VS 4.10 Ratio.3.73 Ratio4.10 RatioNot as fast off of the lineQuicker Off The LineLower TorqueHigher TorqueBetter Gas MileageDecreased Gas MileageHigher Top SpeedLower Top SpeedMar 3, 2021

What is the difference between 3.21 and 3.92 axle ratio?

From the speed 48-57 MPH, 3.21 has higher final drive ratio over 3.92 (10.10 vs 8.23) until it has to shift to 3rd gear at 57 MPH. From the speed 58-70 MPH, 3.92 has higher final drive ratio over 3.21 (8.23 vs 6.74) until it has to shift to 4th gear at 70 MPH.

What is the difference between 3.73 and 4.10 gear ratio?

A 3.73 is a higher gear ratio for half ton pickups its not the best gear for pulling trailers, now the 4.10 gears come stock from the factory on newer trucks and is one of the best rear end gears to use if you plan on pulling a trailer. These both vary by fuel mileage consumption so choose wisely.

What are 3.73 gears 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.

Does VIN number tell gear ratio?

Each number and letter contained within a VIN reveals information about the vehicle, such as the make, model, production year and engine size. … The VIN will not give you gear ratios in most cases.

How fast can you go with 4.10 gears?

On the highway a 4.10 gear will only be about 200 rpms more at around 75 then a 3.73. And with the Automatic you will need all the help you can get. Top Speed of our GT’s should be between 145 and 155 depending on the tune of your chip if you have one.

Does gear ratio affect horsepower?

Here’s what the numbers mean, how they relate, and how they affect performance: Torque is a measure of the rotational force applied to the engine’s crankshaft and ultimately to the drive wheels. … A higher numeric axle ratio (4.11:1) keeps the engine running in the higher horsepower range, thus improving performance.

Is 3.42 or 3.73 better?

3.73 is 9% higher than 3.42. That means your RPMs at any given speed will be 9% higher. You should be able to accelerate about 9% faster, in the lower gears at least. Your maximum speed in each gear will decrease by 9%.

Are 3.73 gears good for highway?

Rear end gears (2.79’s, 3.00’s, 3.25’s, etc) are great for freeway driving, bit not good for 0-60 MPH or accelerating from a dead stop. Shorter gears (higher numbers) are much better suited for accelerating, such as 3.55, 3.73, 3.91’s, 4.11’s etc. Always remember, for very “give” there is a “take”.

Are 4.10 gears good for highway?

Installing 4.10 gears improves the car’s performance on the track but with negligible effects to the highway driving. … Switching from a gear set of 3.55 or 3.73 to 4.10 gears will affect your gas mileage slightly as your engine will be turning more times to rotate the rear wheels once.

What is a good gear ratio for highway driving?

If your highway driving includes a lot of mountain terrain then I’d also go to 3.73 but otherwise 3.55 will afford you the best fuel economy. The opinion on the best gears depends on the goal: Off the line – go to lower gears (3.73, 4.10, etc…) Fuel Mileage -go for higher gears (3.08, 3.31, etc..)

What gear ratio is best for acceleration?

4.10:1In 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.

Do 3.73 gears make a difference?

Registered. Yes, while it’s a noticeable improvement in seat of the pants acceleration, you will run out of rpms quicker with 3.73s. In the long run you’ll find yourself looking for more engine rpms. The increased torque multiplication of lower gears will help make better use of a higher revving engine combo.

Which rear end gear ratio is best?

3:55The 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.

Is a 3.42 gear ratio good?

Lower numeric axle ratios may help reduce how much an engine has to work while cruising at highway speeds, and can potentially help improve fuel economy. … For instance, the 3.42:1 ratio included on many Canyon V-6 and Sierra 1500 models offers a good all-around blend.

How much can a 5.3 L V8 tow?

5.3L V8 Engine — produces 355 hp and 383 lb-ft of torque. Towing capacity is boosted to 11,600 pounds.