A locking differential, often referred to as a "locker," is a type of differential that enhances traction by ensuring both wheels on the same axle turn at the same speed, even when one has little or ...

There are lockers and knockers, limited slips and Sure Grips. Sometimes they're called Positractions and sometimes much worse. But this name game is really about the concept of pushing equal measures ...

There are many possible differentials to use in the rearend of your car. Before making your decision you should determine how you will use the car, how streetable you want it to be and how much you ...

Have you ever tried to accelerate quickly to merge onto a high-speed highway in bad weather and been stuck spinning one wheel? Open differentials are important when making turns as they allow for the ...

No matter what kind of car you're driving, power likes to go to whichever drive wheels have the least traction. That's a big part of why driving on slippery stuff can feel sketchy, and why things like ...

QUESTION: I own a ’91 Chevy full-size pickup with four-wheel drive and need to know whether “posi-traction” is different from limited slip differential. I also need to know what I have on my truck. I ...