Loading

What axle ratio does my Ram 1500 have?

The axle ratio of your Ram 1500 pickup truck is an important specification that affects its performance and fuel efficiency. Knowing your axle ratio can help you understand your vehicle's capabilities and make informed decisions about towing, hauling, and other tasks. In this article, we'll provide a detailed explanation of how to determine the axle ratio of your Ram 1500.


What is an Axle Ratio?


The axle ratio, also known as the final drive ratio, is the relationship between the number of times the driveshaft rotates compared to the number of times the wheels rotate. A higher axle ratio, such as 3.92:1, means the wheels will rotate fewer times for each rotation of the driveshaft, resulting in more torque and better towing capacity. A lower axle ratio, such as 3.21:1, will provide better fuel efficiency but less towing power.


Finding the Axle Ratio of Your Ram 1500


There are a few ways to determine the axle ratio of your Ram 1500:



  • Check the Vehicle Information Placard: This placard is typically located on the driver's side door jamb and will list the axle ratio as part of the vehicle's specifications.

  • Consult the Owner's Manual: Your Ram 1500's owner's manual will also provide the axle ratio information.

  • Inspect the Rear Axle: The axle ratio is often stamped on the rear axle housing, usually near the differential cover.

  • Use an Online Lookup Tool: Many automotive websites and forums offer lookup tools that can provide the axle ratio based on your Ram 1500's model year, engine, and other details.


Once you've determined the axle ratio of your Ram 1500, you can use this information to make informed decisions about your vehicle's capabilities and performance.

What is the towing capacity of a 3.21 axle ratio?


You would be overweight. Towing capacity for the 3.21 is around 8100 lbs and that trailer is a GVWR of 9000 lbs. The dry weight is around 7500 lbs which is just under the towing capacity.



Which is better, 3.73 or 4.10 axle ratio?


ARE 3.73 OR 4.10 GEARS BETTER? Use this rule of thumb: The shorter the gear ratio (higher number), the easier it will be for the vehicle to start moving and accelerating! This will, however, lower the top speed of the vehicle.



Does the VIN number tell you the gear ratio?


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.



What gets better gas mileage, 3.73 or 4.10 gears?


a 4.10 has a huge impact on engine rpm because you are selecting second gear with a 3.73 to pull the grade, but you can hit third gear with a 4.10. Your engine speed is about 1,000 rpm lower, so temperatures under hood are going to be significantly lower. Higher numerical ratios often increase fuel consumption.



How do I identify my Ram differential?


If the ID tag or stamp is missing or unreadable, differentials can be 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.



Which RAM axle ratio is best for towing?


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 my axle ratio on a Ram 1500?


If you look at the '19 Ram 1500 sales literature, or the online ordering screens, you will see that the 3.21 non-limited slip axle ratio is standard across the line, with the exception of the Rebel.



Which is better, 3.21 or 3.92 axle ratio?


The standard 3.21 axle ratio then gets you a maximum tow rating of 8,440 pounds. Go with the 3.92 gearing and the tow rating jumps up to 11,540 pounds — a massive 3,100-pound difference.



What is the best gear ratio for towing a Dodge Ram 1500?


A 4.10 rear axle ratio is ideal for towing larger 5th Wheel or Gooseneck trailers. 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.



Which RAM has 3.92 rear axle ratio in Ram 1500?


2023/2024 Ram 1500 Classic Towing Chart

2023/2024 Ram ClassicREG CAB 4X2QUAD CAB 4X2
3.92 AXLE RATIO
RAM 1500 3.0L DIESEL
3.55 AXLE RATIO8,240 LBS8,070 LBS
3.92 AXLE RATIO9,210 LBS9,070 LBS


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.