The front end of four-wheel-drive trucks can be raised by placing the jack under the differential. Pro tip: For two-wheel-drive trucks, place the jack beneath the jacking pad under the engine.

In the commercial truck tire service world ... If using the differential, or "pumpkin" to raise a drive axle, the jack cannot contact the drain plug. You should know that damage may result if you lift ...

Semi-trucks are some of the longest ... just enough that there are no gaps between the rim and the axle. Slowly lower the hydraulic jack until the wheels are firmly on the ground.

Banks is on a quest to determine if the current crop of aftermarket pickup truck differential covers actually do anything beneficial. Most diff cover designs claim to reduce wear by increasing oil ...

Something’s wrong and you might want to stop at the auto parts store since you just blew out the differential. The rearend of a truck takes a lot of abuse. As a rule, factory units are stout and ...

Every diesel truck on the road today has a differential and ring and pinion gear set in the rear axle. Four-wheel-drive trucks add a second set of gears and another differential to the front axle ...