Which axle ratio is best?

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.

Is 3.92 good for towing?

Go with the 3.92 gearing and the tow rating jumps up to 11,540 pounds — a massive 3,100-pound difference. 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 rear 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.

Can you adjust the final drive gear ratio on a RX-7?

Complete Traction Kit (Drag Launch) (in stock!) We also offer different final drive (rear end) gears for nearly every street/racing condition. Adjusting the final drive gear ratio on your RX-7 will alter the acceleration and top speed.

What kind of differential does a Lexus RX7 have?

RX7.COM | FD Rearend The 3rd generation RX-7 comes from the factory with a high-tech Torsen Limited Slip Differential. This unit is superior to the earlier viscous and mechanical limited slip differentials in many ways. Quieter operation, better torque transfer, and no additives to install in the gear oil.

Are there any replacement axles for the stock axles?

For the serious drag racer, we now offer state-of-the-art axles which are an EXACT replacement for the stock axles. Under serious racing conditions, the stock axles are well known to twist and snap like a twig. We’ve been known to bring 3-4 PAIRS of axles to an event for spares before we began using these new, high-tech axles.

What is the final drive gear ratio of a car?

For manual transmission cars, the stock final drive gear ratio is 4.10 (3.90 for automatic). Going to a different gear such as the 4.30 found in the Japanese spec cars will result in faster acceleration and a lower E.T.