Pitching the stock differential out from under a GM car in favor of a 9-inch Ford has always been the best way to step up the drivetrain for drag racing. Since the price of used 12-bolts has ...

If you ever need to track someone’s 4x4 off-road, it’s easy if the rear diff under said rig is a stock GM “Corporate” 14-bolt: just look for the drag mark plowed down the center of the trail or the ...

I dig cars, and I do car stuff. I started fairly late in life, though, and I’m only just starting to get into the whole modification thing. Now, as far as automobiles go, you can pretty much do ...

If you've never spent an afternoon roaming your local pick-a-part, you don't know what you are missing. Just cruising the aisles of your local wrecking yard can give you budget ideas and a better ...

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

We earn commissions from purchases you make using links in our articles. Learn more. Most of the time, it’s unnecessary to give your vehicle’s differential cover a second thought; the technology has ...

The Japanese say torque vectoring reduces steering effort. The Germans will tell you that these trick differentials increase dynamism (whatever that means). And the Americans—just now getting started ...