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 ...

When it comes to strength, value, and vast availability, the full-float 14-bolt rear axle from General Motors is about as good as it gets. Fitted with an impressive 10½-inch ring gear, three pinion ...

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 ...

Ford is recalling more than 238,000 Explorers in the U.S. because a rear axle bolt can fail, potentially causing a loss of drive power or allowing the SUVs to roll away while in park. The recall comes ...

Kia America, Inc. (Kia) is recalling certain 2023 Niro EV and 2024 EV9 vehicles. The differential gear bolts in the gear drive unit may not be tightened properly, which can result in a loss of drive ...

Hyundai Motor America (Hyundai) is recalling certain 2024 IONIQ 6 vehicles. The differential gear bolts in the gear drive unit may not be tightened properly, which can result in a loss of drive power ...

Drag racing is all about overkill: Too much horsepower is never enough. The drivetrain takes all the gaff, so racers tend to it with Brooklyn Bridge-like structures to keep from scattering parts all ...

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 ...

Ford has patented a new and ingenious bolt-on third axle for boosting vehicle payload. This innovative kit also offers the convenience of being removable, potentially resulting in significant cost ...

The National Highway Traffic Safety Administration said in a recall notice that “the rear axle hub bolt may fatigue and break." ...