Do limited slip differentials spin both tires?

The differential is what allows the wheels to turn at different speeds. The vast majority of rear-wheel drive cars have an open differential. This means that the rear wheels can spin independently of each other. If it spins in the same direction, you have a limited slip differential, or LSD.

How much limited slip additive do I need?

The recommended mixing ratio is one fluid ounce of Limited-Slip Axle Additive Concentrate to one pint of API GL-5 gear lubricant.

What is the purpose of a limited-slip differential?

As the name implies, the purpose of the limited-slip differential is to limit or control the amount of slip allowed in the differential. For maximum straight-line acceleration, an “ideal” LSD would allow zero slip between the left and right drive wheels. This would cause both drive wheels to equally propel the vehicle forward.

Is there a big difference between tire sizes in a differential?

That’s not much difference in diameter, but to be safe you should have a matching set. You need to replace the damaged tire anyway or risk getting stuck by another tire problem. Any size difference will a cause typical “open” differential’s internal gears to spin constantly while in motion.

What are the different types of differentials?

The two most common differentials are open differentials and limited-slip differentials. The former is great for turning on clearer roads while the latter is better for road conditions which will likely cause your wheels to slip. In a limited-slip differential, engine torque is distributed evenly to each wheel on the axle.

How to tell if rear end is limited slip or not?

It is quick and all you do is read the tab on the differential pumpkin, or lift the rear and spin the tires… While moving one tire by hand, If the tires move in the same direction (or one doesnt move), it means that it is most likely a limited slip (posi traction) rear end.