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 ...

You can’t build a fast, reliable street/strip machine and ignore the rearend. Everyone talks about engines and transmissions, but very few talk about differentials. We believe that’s a mistake because ...

The staff of Four Wheeler was having a feeding frenzy at a restaurant recently and not paying attention to the background music until a song from the ’80s started playing. We dug the song, but we drew ...

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 ...

The 2015 through 2022 model year GMC Canyon midsize pickup is included in a customer satisfaction program issued by GM for certain units of the truck, which have a mislabeled base front differential ...