High-Ranges and Transfer Cases
Like many drivers, you may drive a car, SUV, or truck that can shift from 2-wheel to 4-wheel drive on-demand. If you do, then your vehicle almost certainly contains something called a transfer case.

Transfer cases are mini-transmissions that attach to regular transmissions. From their vantage point, transfer cases can route torque from the main transmission to each drive wheel. Many transfer cases allow drivers to shift into either high-4x4 or low-4x4. High-4x4 offers you several advantages that include lateral stability and traction.

