How does axle ratio work

The axle ratio is the number of revolutions the driveshaft must make to spin the axle one full turn. If a truck has an axle ratio of , for example, the driveshaft turns 3. In terms of how an axle ratio should be structured, 3. The best axle ratio for your truck depends on your application. Are you looking for a truck with heavy-duty performance? Or, are you more concerned about fuel economy?

In any case, the axle ratio matters. To summarize: What is axle ratio? Roll out from a stop light or merge into fast-moving highway traffic and you want a tow vehicle that gets up to speed quickly. This is especially true of a vehicle equipped with a V-6 or small V When towed weights get above 5, pounds, gasoline V-8s need all the pulling help available, and those 4. Optional final drive ratios do have an impact on typical highway driving steady state driving above 60 mph.

That change is linear: Equipping a truck or SUV with a 3. The 3. So the total impact in combined driving may be in the range of 0. Those fractions of a mile-per-gallon will never be noticed by an owner. Further more, Clark says that in the real world, choosing a lower gear ratio may not even show up in city driving fuel economy.

A lower numerically higher gear ratio provides more low-speed wheel torque, which makes it easier to get the vehicle moving when pulling a trailer or carrying a load of passengers and cargo. Lower gears also improve acceleration up to about 60mph. Thank you for any help. I have been collecting lots of info, but I am not sure whether I have all that I need.

I decided to try to make an electric truck from an old one. Still in the learning curve on Induction and SynRM electric motors. At some point I saw something about rear axles breaking from high torque shear force. Since electric motors are instant high torque which would apply high torque with the mass of the truck stationary and that could easily shear the ring and worm gear.

Please Sir tell me that how much horsepower has 1. While Jerry admits to hitting the pedal to the metal on test drives, it's all the service of finding out just how fast he can go from 0 to Photo Credit: Ford.

Not a week goes by that I don't get a question on about the right vehicle to tow a trailer with. My pickup gets horrible fuel economy.

My pickup doesn't do a good job towing my trailer. People go to dealerships way too often focused on color, comfort, engine size, etc. The rear axle ratio should be at the top of the list, no matter what you are going to use your pickup for. If not towing, you want the best fuel economy you can get, and if you are towing, you want to make sure your truck will do the job.

Automakers Offer Variety of Axle Ratios There is good reason automakers offer a variety of different axle ratios. The axle ratio refers to the gears in the truck's differential, which is a mechanical device that links the rear axle to the driveshaft and then the engine.