Locking hubs are a really important part of four-wheel drive systems: They're there to help drivers switch between two-wheel drive and 4WD.While many modern 4x4s now use automatic systems, the ...

Traction is pretty much doubled between tires and street (or dirt, rocks, mud, snow, and so on) by driving four wheels instead of two. Let’s start with the basics of an American-built pickup we’ve ...

Towing heavy trailers with four-wheel-drive trucks has its advantages, most notably the added traction provided by the front differential and the ability to drop the transmission into low range when ...