Differentials are what allow the wheels on a vehicle to actually move around effectively. Open differentials are common, but limited-slip ones are special.

When it comes to fixing your differential, there’s bad news and good news. The bad news is that differential replacements are expensive, often ranging from $2,500 to $6,000. The good news is that both ...

Not to worry, Ava. My wife tells me my rear end is completely gone, too. But she’s still sticking with me. The “rear end” is your mechanic’s shorthand for the differential. The differential is ...

Late-model Ford owners are a fortunate bunch. It's easy to make your Blue Oval machine stomp the competition with copious horsepower, and these days the transmissions aren't too bad, either. The last ...

Your rear differential is one of the most unappreciated parts in your car or truck. It does what might be the hardest job of all of those components, multiplying torque from your transmission and ...

There are several basic rear axle types used in 4x4s, and each have specific design pros and cons. Axle designs can vary in load handling, bearing and flange type, and gearset configuration. In this ...

"No plan survives first contact." A 19th-century Prussian field marshal coined that idea 100 years before Project CC Underbird's triangulated four-link rear suspension and 8.8-inch, Salisbury-style, ...

There are a lot of things that make the Mercedes-AMG C63 S Coupe drive as well as we expect it to, and few would think to rank the rear axle limited slip differential with electronic lock very high ...

There are certain pieces in hot rodding that reign supreme, they're king, top of the heap, and there's no chance of dethroning them. Be it a full-house Flathead, the big, bad Hemi, or the entire '32 ...

Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. Why Trust Us? Changing the car differential oil—it's one of the most-overlooked maintenance tasks ...