What is the best gear ratio for highway driving?

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What is the best gear ratio for highway driving?

What is the best gear ratio for highway driving?

For on-highway linehaul, the range tightens to a fuel friendly 2.26 through 3.42 for the most common ratios. “For on-highway, direct drive, it starts all the way down at 2.26 and up to 3.08 or larger,” Garrison says. “Getting into the mid- and upper-threes is starting to get more unusual these days.”

Is 3.42 or 3.73 better?

The 3.42 is fine for towing smaller boats, plus you will get better gas mileage for everyday driving. If I were towing frequently on hilly roads, I might would go for the 3.73 for better gas mileage while towing, but the 3.42 should be fine with a 205.

Is 3.73 a good gear ratio?

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 the difference between a 3.73 and 4.10 axle?

3.73, for every 373 rotations of the driveshaft you get 100 rotations of the axle, and for 4.10, for every 410 rotations of the driveshaft you get 100 rotations of the axle. Now, this means that your engine is spinning faster on 4.10 rather than 3.73.

Are 3.70 gears good?

whether that's an auto or manual, 3.70's are fine. Rpm's average for me with 3.73 at around 70-75 mph and a t5 5 speed. however, if you're running the stock trans and enjoy getting on the freeway at all, don't add gear until you update to an overdrive trans.

What's the increase in rpm with 3.73 gears?

  • You're looking at a 20% increase in RPM. If your car runs @2500 RPM on the highway now... It will run @ 3000 rpm at the same speed with 3.73 gears. it varies honestly, alot less now with weather turning.

Can a TH350 run with 3.73 gears?

  • It will run @ 3000 rpm at the same speed with 3.73 gears. it varies honestly, alot less now with weather turning. backroads and stoplight hell on my way to work, 10 mile jaunt on the highways to see my girl. Long term plan is a custom built 4spd auto and better vortec heads for it. My current setup. TH350 with shift kit and stock type gearing.

Which is the best gear for a car?

  • If you'll have monster low end torque, but limited high end, then a lower (numerical) gear would probably be better. If you have a lot of power at lower RPM's, you may be happy with a 3.23 to 3.55 gear, and still maintain highway drivability.

What's the best gear to use on a sled?

  • If you have nothing but high end power, than the motor will need all the help it can get to get the sled moving, so the 3.73's and higher (numerically) would be a better choice. You need a 3.73 - 3.90 gear in order to get the RPM's up high fast. With 3.90's and 245R60/15's you are turning 3500 RPM at 60 MPH.

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