What is a 2 speed rear axle?

Rear Axle – 2-Speed Rear Axle A two-speed rear axle allows the driver to select a low range for greater pulling power and a high range for greater road speed and fuel economy. Note: Do not shift the axle to LOW when your vehicle is moving.

What is a split rear differential?

Otherwise known by its product name of ‘Torsen’ diff, this is a special type of differential that’s used by four-wheel-drive cars to split power between front and rear axles. One of the first production cars to use a Torsen diff was the Audi Quattro, and this system helped it to dominate in rallying in the early 1980s.

Is a 2-speed differential better than a low gear differential?

However, a low gear limits your cruising speed, as it makes your engine RPM high. The only way to have both tons of pulling power and good cruising speeds is to have a 2-speed differential. In modern trucks, a 2-speed rear end isn’t really necessary, which is why they are far less common now.

Do I need a higher gear ratio for 2-speed axle?

If you want more cruising speed to need a higher gear ratio. The 2-speed axle works on the same basic principles, but with an added planetary gear set inside the ring gear. In high range, the planetary gears don’t do anything and the differential works totally normal.

How does a 2-speed axle work?

The 2-speed axle works on the same basic principles, but with an added planetary gear set inside the ring gear. In high range, the planetary gears don’t do anything and the differential works totally normal.

What determines the gear ratio of a rear differential?

In a standard differential, the wheels are the ring gear rotate at the exact same speed. The gear ratio is determined by the pinion gear and ring gear relationship. If you want more pulling power you need a lower gear ratio pinion and ring gear installed. If you want more cruising speed to need a higher gear ratio.