How Do I Know What Gear Ratio My Front Differential Is?

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 gear ratio is best for pulling?

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.

What do the first 3 digits of a VIN mean?

The first three digits of the VIN make up the World Manufacturer Identifier (WMI) number. However, if an automaker builds fewer than 500 vehicles per year, 9 will be the third digit and positions 12-14 (part of the production number) will make up the second part of the manufacturer’s WMI.

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 3.73 gears good for highway?

Well, if you plan on doing a lot of freeway driving, you don’t want to choose a gear that’s too low for your car because you’ll be going down the freeway at too high of an RPM. … Shorter gears (higher numbers) are much better suited for accelerating, such as 3.55, 3.73, 3.91’s, 4.11’s etc.

Does gear ratio affect horsepower?

Does gear reduction increase horsepower? Gear reduction occurs when an engine’s output speed reduces or the torque increases. It refers to the rotational speed of the engine when it is divided by a gear ratio greater than 1:1. … Typically, gear reduction reduces the speed of rotation but does not affect horsepower.

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

The gearing ratio is an indicator of the financial risk associated with a company. If a company has too much debt, it can fall into financial distress. A high gearing ratio shows a high proportion of debt to equity, while a low gearing ratio shows the opposite.

Is a 4.10 gear ratio good?

FACT: A 4.10 axle ratio is ideal for towing heavy loads in a mix of city and highway driving and when towing on varied or steep grades. A 4.10 axle ratio will provide improved acceleration in stop and go city traffic.

What does the 8th digit of a VIN mean?

Digits in position 4 through 9 make up the Vehicle Description Section (VDS). The fourth through eighth digits describe your vehicle’s model, body type, restraint system, transmission type, and engine code. The ninth digit is the check digit, which is used to detect fraudulent VINs.

How do I know the axle ratio of my truck?

To find a truck’s axle ratio, check the exterior of the differential — that is, the device attached to the axle that lets the wheels turn at different speeds — to see if it has a sticker displaying the ratio.

What are the different types of differential?

Different typesAn open differential (OD) is the most common type. … A limited slip differential (LSD) overcomes this problem. … A locking differential (locker) is able to lock the two drive wheels on an axle together. … A spool is an open differential in which the axles have been mechanically fastened together.

What is the difference between 3.73 and 4.10 gear ratio?

Use this rule of thumb: The higher the gear ratio, the easier it is to get the vehicle moving and better accelerating, but lowers top speed. Vice versa, if the gear ratio is lower it has worse acceleration but a higher top speed….WHICH GEAR RATIO IS FOR YOU?3.73 RATIO4.10 RATIOHigher top speedLower top speed3 more rows•May 12, 2020

How do I identify my Chevy rear differential?

The rear cover’s shape and the number of bolts are identifying features for GM rear differentials. The round 10-bolt cover with a bulge for the ring gear identifies this axle assembly as an 8.5-inch 10-bolt. The two lugs on the lower case at the 5 and 7 o’clock positions are also identifying features.

How do I know if I have a limited slip differential?

The easiest way to tell if you have an open differential is to jack up the car and spin one of the rear tires. If the other wheel spins in the opposite direction, you have an open differential. If it spins in the same direction, you have a limited slip differential, or LSD.

How do I know my differential gear ratio?

So an easy way to determine your actual gear ratio is to check the tag attached to the differential cover by the cover bolts. On the tag there should be some numbering such as 3.54 or 3.73, either of those numbers will give you the stock axle ratio.

How do I identify my differential?

Without an ID tag, differentials are identified by the number of cover bolts, the distinctive shape of the cover, the number of ring gear bolts, and ring gear diameter. They can also be identified by whether the center section is an integral or dropout design.

How do I identify my GM differential?

Information about Differentials in GM vehicles can usually be obtained by looking at the RPO or “Regular Production Option” codes contained in the Service Parts Identification tag in the glovebox. Whenever possible, reference the tag numbers when ordering parts for your Differential.

What gear ratio do I have by Vin?

Check the bolts on the differentials. There should be a tag on one of them. The codes on that tag will tell you the gear ratio. The VIN will not give you gear ratios in most cases.