If your rig began as a torquey, V-8–powered truck, a set of bigger tires may not have phased it. But after adding hulking 34-inch Toyo Open Country rubber to our FJ Cruiser, it was clear the factory 3 ...

Suspension lifts and big tires make a truck look good and more capable for off-roading, but these benefits come at a price. Tires with a larger diameter reduce the amount of leverage the engine has to ...

In case your car's rear end is suffering from a leaky seal, or the bearings are a bit on the worn side, or (worse yet) you've destroyed it, don't fret—it isn't that hard to go through it and put ...

Higher, lower, taller, shorter, more, lesshow do you have any idea what guys are talking about when it comes to rear-axle gears? It's confusing, because the slang seems to contradict the math.