What is the axle ratio of a Dodge Ram?

Axle Ratio of a Dodge Ram
The axle ratio of a Dodge Ram can be found by locating the metal tag on the rear axle carrier housing. This tag contains the gear ratio of the vehicle. It’s important to note that if the truck is 4WD, the front and rear axle ratios should be the same. A higher axle ratio results in a lower gearing ratio, and vice versa.
If you have a specific Dodge Ram model, you can use the metal tag on the rear axle carrier housing to determine the axle ratio. For example, the RAM 1500 TRADESMAN 5.7-LITER V8 HEMI MDS VVT REG has an axle ratio of 3.92, while the RAM 1500 TRADESMAN 3.6-LITER V6 24-VALVE VVT R has a different axle ratio.
It’s also worth noting that the axle ratio can impact the towing capacity of the vehicle. For instance, a higher axle ratio allows for a higher towing capability, but it requires higher engine rpm for any given speed and results in lower fuel economy.
In summary, to find the axle ratio of a Dodge Ram, locate the metal tag on the rear axle carrier housing, which contains the gear ratio of the vehicle.

Is a 3.92 axle ratio good for towing?

In short, yes. Which axle ratio you go with will affect your truck’s towing capability, but fuel economy will change too. A higher axle ratio (like the 3.92 we mentioned earlier) will allow for higher towing capability, but it requires higher engine rpm for any given speed and then results in lower fuel economy.

What is the best axle ratio for RAM?

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.

What 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.

Is 3.21 better than 3.92 for towing?

For towing, From the speed 0-30 MPH, 3.92 has higher final drive ratio over 3.21 (18.46 vs 15.12) until it has to shift to 2nd gear at 30MPH. From the speed 31-38 MPH, 3.21 has higher final drive ratio over 3.92 (15.12 vs 12.31) until it has to shift to 2nd gear at 38MPH.

What is the benefit of a 3.92 rear axle ratio?

I feel like a lot of people like the 3.92 for that 0-30 towing gear. It gives you better acceleration off the line which makes the truck drive a bit more sporty. That may be why some people call the 3.21 “slow” or “sluggish” (even though there isn’t THAT much difference).

How do I find my Ram 1500 axle ratio?

you should be able to find this via the build sheet, VIN search, or by reading the tag on the rear differential. If it is a 4 wheel drive, the front and rear ratios will be the same, in the event that your tag has rotted away, your front will be more likely still in tact.

How do I find the axle ratio on a VIN number?

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 is a 3.73 axle ratio good for?

A numerically higher axle ratio provides a mechanical advantage to send more of the engine’s available torque to the rear tires (and front tires, in a four-wheel drive vehicle), but you pay the price at the fuel pump. So, a truck with optional 3.73 gears will tow a heavier trailer than one with 3.55 or 3.21.

What is the differential ratio on a Dodge Ram 1500?

This rear diff is configured with a 3.55, 3.92, or 4.10 gear ratios, and a limited slip differential, depending on the stock configuration of your Dodge Ram.

How do I find out my axle ratio?

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.