How do I tell what gear ratio I have on my Chevy?
To find out the gear ratio on your Chevy vehicle, you'll need to locate the information on the vehicle's data tag or in the owner's manual. The gear ratio is an important specification that affects your vehicle's performance and fuel efficiency, so it's good to know what it is.
What is a Gear Ratio?
The gear ratio refers to the relationship between the number of teeth on the drive gear (connected to the engine) and the number of teeth on the driven gear (connected to the wheels). This ratio determines how much the engine's rotational speed is multiplied or reduced before being transferred to the wheels. A higher gear ratio means the wheels turn more times for each engine revolution, providing more torque but lower top speed, while a lower gear ratio means the wheels turn less for each engine revolution, resulting in less torque but higher top speed.
Finding Your Chevy's Gear Ratio
There are a few ways to determine the gear ratio on your Chevy:
- Check the Vehicle Data Tag: This tag is usually located on the driver's side door jamb or in the engine compartment. It will list the vehicle's specifications, including the gear ratio.
- Consult the Owner's Manual: Your Chevy's owner's manual should have the gear ratio information listed in the technical specifications section.
- Inspect the Differential: You can also physically inspect the differential on your Chevy to find the gear ratio. The ratio is usually stamped on the differential housing.
Once you know your Chevy's gear ratio, you can better understand how it affects your vehicle's performance and make informed decisions about modifications or replacement parts.
How can I tell what gear ratio I have without pulling cover?
I have my buddy holding the other Tire. I start spinning this and I'm watching the other. One. That's one full rotation right there.
How can you tell the difference between a 3.73 and a 4.10 gear ratio?
There is only a 10% difference between 4.10 and 3.73 gears. Unless you need to tow heavy loads, I would keep the 3.73 gears. Or maybe if you are going to big, big tires. Otherwise you probably won't notice the difference. And, If you get some big tires (35-37``) you probably would want to go to a 4.56 or so ratio.
What gets better gas mileage, 3.73 or 4.10 gears?
To keep it simple, if you want a daily driver and want to save a little on fuel and you care about performance but don't want screaming RPM, then taller gears like the 3.73 ring and pinion are the way to go.
Is 3.73 gear ratio good?
A 3.73 gear ratio is going to be good for several different reasons, depending on the application. For a truck, it is great for heavier loads where factory gear ratios that are 3.55 or 3.31.
What is a 3.73 axle ratio good for?
The higher the ratio, the more revolutions per minute. Towing: For pickup trucks released after 2010, the best axle ratio for towing falls somewhere between 3.55 and 3.73. This range provides good acceleration for V8 gas and diesel engines.
How do I figure out my gear ratio?
The calculation uses the number of teeth in the ring gear and divides it by the number of teeth in the pinion gear to provide you with a “[result] to 1” ratio. For example, if the pinion gear has 41 teeth, and the ring gear has 11 teeth, the ratio would be calculated as 41/11, which is equal to 3.73 = 3.73:1.
How to find gear ratio by VIN?
You don't. That information is not contained in the VIN, UNLESS a specific model only gets one rear end ratio. VIN tells country of manufacture, vehicle make, class, engine type, size, date of manufacture, plant and serial number. That is the ONLY information contained by the VIN.
How do I identify my Chevy 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 or the driver's side door jamb (B-Pillar).
How to find gear ratio on Chevy Silverado?
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 you find the gear ratio on a GM front diff?
The gear ratio RPO code will be shown on the "Service Parts Identification" sticker (See Illustration 2).
