What is 3.73 rear end gear ratio?
A 3.73 rear end gear ratio is a specific configuration of the differential gears in a vehicle's rear axle. This ratio determines the relationship between the rotational speed of the vehicle's wheels and the engine's crankshaft, affecting the vehicle's performance and fuel efficiency.
What is a Rear End Gear Ratio?
The rear end gear ratio, also known as the final drive ratio, is the ratio between the number of teeth on the ring gear (the larger gear) and the number of teeth on the pinion gear (the smaller gear) in the vehicle's differential. This ratio determines how many times the engine's crankshaft must rotate for the wheels to rotate once.
For example, a 3.73 rear end gear ratio means that for every three and three-quarter rotations of the engine's crankshaft, the wheels will rotate once. This ratio affects the vehicle's acceleration, top speed, and fuel efficiency.
How Does 3.73 Rear End Gear Ratio Affect Performance?
A 3.73 rear end gear ratio is considered a "performance" ratio, as it provides the following benefits:
- Improved Acceleration: The higher gear ratio allows the engine to produce more torque at the wheels, resulting in quicker acceleration from a stop or when passing other vehicles.
- Increased Towing Capacity: The higher gear ratio provides more low-end torque, which is beneficial for towing heavy loads or hauling cargo.
- Enhanced Off-Road Capability: The 3.73 ratio is well-suited for off-road use, as it provides more torque and power to the wheels in challenging terrain.
However, the trade-off for these performance benefits is a slight decrease in fuel efficiency, as the engine must work harder to maintain the same speed compared to a lower gear ratio.
When is a 3.73 Rear End Gear Ratio Recommended?
A 3.73 rear end gear ratio is often recommended for the following vehicle types and uses:
- Trucks and SUVs: The 3.73 ratio is a popular choice for larger vehicles, as it provides the necessary power and torque for towing and hauling heavy loads.
- Performance-Oriented Vehicles: Sports cars, muscle cars, and other high-performance vehicles may benefit from the 3.73 ratio, as it enhances acceleration and overall driving dynamics.
- Off-Road Vehicles: The 3.73 ratio is well-suited for off-road use, as it provides the necessary low-end torque and power to navigate challenging terrain.
It's important to note that the optimal rear end gear ratio for a vehicle can vary based on factors such as engine size, transmission type, and intended use. Consulting with a professional or referring to the manufacturer's recommendations is advisable when considering a 3.73 rear end gear ratio for your vehicle.
What gear ratio is best for gas mileage?
Best MPG ratio
If getting the best fuel economy is priority, then choose the lowest numerical number offered, such as 3.08, 3.23 or 3.31.
What is the most comfortable gear ratio?
For flat places, a ratio of 2.6 to 3.0 is ideal for most people. The lower value of this range, with a cadence of 90 rpm, will allow us to ride around 30km/h, while the upper, 34km/h. If you're just starting out on your adventure on a single speed or fixed gear bike, a gear ratio of around 2.7-2.8 will be ideal.
Is a 3.73 axle good for towing?
The 3.73 will tow 8k lbs anywhere you want to go without needing more power or gear. The 4.30 is unnecessary if you dont ever intend to tow heavy. The 3.73 is still rated to tow the heaviest 2 axle 5th wheels on the market. Think of it more like this. With 3.73s it is like you have 1 extra gear vs 4.30s.
What gear ratio is best for towing?
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.
What gear ratio gives more power?
For example, a lower gear ratio will provide more torque and better acceleration, while a higher gear ratio will provide less torque but better fuel efficiency. By selecting the right gear ratios for your vehicle, you can optimize its power and torque to meet your specific driving needs.
What is a 3.73 gear ratio good for?
For a truck, it is great for heavier loads where factory gear ratios that are 3.55 or 3.31. In a sports car, 3.73 gears will offer better acceleration while retaining top speed when compared to 3.55 gears that come factory on many sports cars.
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.
What is the best axle ratio for pulling?
between 3.55 and 3.73
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.
What gear ratio do I need for 35 inch tires?
Gear Ratio / Tire Size Table
| GEAR RATIO | ||
|---|---|---|
| T I R E D I A M E T E R | 4.56 | |
| 34" | 2929 | |
| 35" | 2845 | |
| 36" | 2766 |
What's the best rear-end gear ratio?
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.
