What is the axle ratio of my truck?
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.
Is a 3.31 axle ratio good?
Normally, the 3.31 would get you better gas mileage, on highway. But, with the 3.55 you will get a bit more pulling power so less time at higher RPM to get your trailer moving and when going uphill. If most of your towing is flat highway, the 3.31 should do you fine.
Is 3.42 axle ratio good?
Lower numeric axle ratios may help reduce how much an engine has to work while cruising at highway speeds, and can potentially help improve fuel economy. For instance, the 3.42:1 ratio included on many Canyon V-6 and Sierra 1500 models offers a good all-around blend.
Is a 3.92 axle ratio good?
But opt for the higher 3.92 axle ratio and that same truck packs a higher towing capacity of 9,930 pounds. 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.
Which axle ratio is best?
The 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.
Is a higher axle ratio better?
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 better 3.21 or 3.92 axle ratio?
From the speed 48-57 MPH, 3.21 has higher final drive ratio over 3.92 (10.10 vs 8.23) until it has to shift to 3rd gear at 57 MPH. From the speed 58-70 MPH, 3.92 has higher final drive ratio over 3.21 (8.23 vs 6.74) until it has to shift to 4th gear at 70 MPH.
What is the difference between 3.73 and 4.10 axle ratio?
4.10s are going to accelerate faster and decelerate faster on lift. However the trade off is greater fuel consumption per mile driven and higher engine speed per given road speed. In basic terms the 4.10s will feel quicker and 3.73 will feel faster.
What is the best gear ratio for a truck?
Rear-Axle Ratio Spec Guidelines. In medium-duty trucks, gear ratios range from as low as 2.69:1 to as high as 7.17:1, depending on the truck class, make and model, and rear-axle capacity.
What is the best axle ratio for towing?
Pickups towing big 5th wheel trailers do well equipped with 4.10:1 axle ratios. The thinking behind the decision to stick with the base axle ratio, which is typically 3.08:1 or 3.42:1, is the ratio comes standard, so that’s what the vehicle manufacturer feels is the best setup.
How does axle ratio affect towing?
Truth be known, even with an axle ratio designed for towing, your fuel economy doesn’t suffer much in normal stop and go type driving simply because of the axle ratio. The loss in mileage comes more at highway speeds, and of course when you are towing or hauling heavy loads, which is to be expected.
What does axle ratio do?
Axle ratio is defined as the rotational ratio between the transmission shaft- which run by the engine, and the drive axle of the vehicle- which rotates the wheels. The axle ratio depends upon a lot of factors, some of them including- gross weight of the vehicle, fuel economy to be achieved, power to be transmitted to wheels,…