The old saying goes, “Out of sight, out of mind.” So, unless your Mustang’s rear axle has been complaining, it’s easy to take it for granted. Aside from receiving stronger shafts or a steeper gear set ...

Virtually every road car is equipped with some sort of a differential and it’s vital to the way a car performs – without one negotiating a corner would be difficult. The differential’s main purpose is ...

Performance cars have limited-slip differentials, period. The "One Wheel Peel Deal" isn't any more acceptable than running 17s in the quarter-mile. Unfortunately, it seems the only way to get both ...

Everybody loves to hate the Quadra-Trac. It’s like gum on the bottom of your shoe, diarrhea, and fat Kirstie Alley all rolled into one. Jeep introduced the BW1339 Quadra-Trac to its full-size pickups, ...

They're both supposed to spin. That's all there is to it. When you stab the long pedal on a performance car and the smoke clears, there should be two black stripes of equal length on the ground. When ...

Subaru has carved a niche in the vast automotive industry by doing one thing: equip every single car it sells with an all-wheel-drive system. That's minus the BRZ, of course, which features rear-wheel ...

Each of these round metal discs has a hole in the center. Two pieces are larger than the other two. One larger piece is comprised of three discs that fit together. A mark on the objects reads: Warner ...