What is the drive system of a vehicle?

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Typical drive types of a vehicle are –
(a) Front engine front drive: engine – clutch – gearbox – universal joint – differential – front axle – wheels – tyres

(b) Front engine rear drive: engine – clutch – gearbox – universal joint – propeller shaft – universal joint – differential – rear axle – wheels – tyres

(c) Rear engine rear drive: engine – clutch – gearbox – universal joint – differential – rear axle – wheels – tyres

(d) Four wheel drive: The four wheel drive includes use of a transfer case which divides the power / torque to all the four wheels as and when required. 4 wheel drive vehicles have the option of switching between 4 wheel drive and two wheel drive.

(e) All-wheel drive: The all-wheel drive too includes use of a transfer case which divides the power / torque to all the four wheels NOT as and when required. All-wheel drive vehicles do not have the option of switching between 4 wheel drive and two wheel drive.

(f) Articulated drive: The articulated drive is used in heavy transport or agricultural vehicles. It consists of an extra axle and set of wheels.