It's built strong, lasts long, and hooks the tires so hard it's just plain wrong. This is a fair description of Detroit Locker's new Detroit Truetrac locking differential. Whether it's an 8.5-inch ...

Push a pickup hard enough, even a heavy-duty model, and something’s going to give. That’s especially true of limited-slips and lockers found under diesel pickups used hard in the construction world.