Four Wheel Drive (4 x 4) Systems
(Prerequisite: Automatic Transmission Class)
Most cars and trucks on the road transfer power either to the front wheels (Front Wheel Drive), or the rear wheels (Rear Wheel Drive). Some trucks and SUV's can deliver power to all four wheels. This is not to be confused with vehicles that have All Wheel Drive (AWD).
Four wheel drive systems are meant to be used only when there is no traction on the ground. The main reason these systems wind up damaged is due to the driver using it incorrectly. Additionally, since these systems are used in trucks and SUV's, drivers also tend to exceed the tow limit, the rated weight limit, or both. This puts an incredible amount of strain on the system and can cause premature failure on the four wheel drive system, including the transmission.
This course is designed to go over all aspects of the four wheel drive system in a vehicle, including:
Front & Rear Differentials
Front & Rear Drive Shafts