Quick Answer: What Gear Ratio Do I Have By Vin?

Are 3.73 or 4.10 gears better?

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..

How do I know what gear ratio My Chevy has?

Identify your GMC or Chevrolet rear end gear ratio by the RPO Codes, usually located on the placard labeled “Service Parts Identification” inside the drivers door panel or glove box.

How do I find out what gear ratio My truck has?

Here are two ways to find the axle gear ratio of a vehicle: Method 1: Count the number of teeth on the ring gear and the pinion. Divide the number of the ring gear’s teeth by the number of the pinion’s teeth. This will give you the axle ratio.

How do I know what gear ratio my rear differential is?

Turn the wheel TWO revolutions and count the number of driveshaft turns. The number of driveshaft rotations will help you determine your rear axle ratio. For example, if it turned 3 and a half times, it’s a 3.50:1 ratio. If it turned 4 and a quarter times, it’s a 4.25:1 ratio.

What does the 8th digit in a VIN number mean?

Vehicle Description Section 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 you tell the year from a VIN?

The 10th character in the 17-character VIN represents the vehicle model-year.This standard applies to vehicles built in or after 1981. … Note: VINs do not include the letters I (i), O (o), Q (q), U (u) or Z (z), or the number 0, so that they will not be confused with similar looking numbers/letters.

What digit of the VIN is the engine code?

You can find the VIN in the lower corner of your windshield on the driver’s side. In the series of numbers and letters, the tenth from the left denotes the model year and the eighth is the engine code. Just tell the store clerk those two characters and you’re in business.

How do you read a Chevy VIN number?

How to Interpret a Chevy Truck VINThe Chevrolet truck’s VIN number is on a tag on the driver’s side under the windshield molding attached to the dash panel. … The first character will indicate where the truck was manufactured. … The second character cites the manufacturer. … Learn the division from the third character.More items…

What each digit means in a VIN?

The first group of three numbers and letters in a VIN make up the world manufacturer identifier (WMI). In this group, the first digit or letter identifies the country of origin. … The third digit, when combined with the first two letters or numbers, indicates the vehicle’s type or manufacturing division.

Can you tell gear ratio from Vin?

The vehicle identification number (VIN) is a 17-digit code that is used to identify and track every automobile produced. 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 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 know what rear end I have?

There are several ways to identify the axle under your vehicle. Having a visual reference is probably the easiest way. Please open the attached documents to see pictures of the cover gaskets, and differential covers for many popular rear ends.

How do I identify my Chevy rear end?

How to Identify a Chevy Rear EndCount the number of inspection cover bolts on the rear end housing. The inspection cover is on the back of the housing, seen by looking forward under the license plate at the rear of the vehicle. … Identify the most common GM rear-end types. … Look at the shape of the inspection cover and the gasket.

What is the difference between 3.42 and 3.73 gears?

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.