There are four type of wheel drive systems i.e four wheel drive, all wheel drive, front wheel drive and rear wheel drive systems.
Front wheel drive
in these drive train the front tires drive the car, we have an engine in the front connected to a clutch or torque convertor depending on whether it has a manual or automatic transmission. we then have a transaxle which is a combination of the transmission and front axle, this is then led to two c.v joints i.e inner and outer which are covered by c.v boots in the drive shaft to the hub of the car which connects to the tires where the rubber means the road. This is most preferable in sedans and coupes.
Rear wheel drive
In this drive train the rear wheels move the car, we have an engine either in the front or the back depending on the setup.in this case the engine is in the front connected to a torque converter or clutch, this is connected to a transmission and later to a propeller shaft which has two universal joints that allow the shaft to bend in any direction. This propeller shaft later leads to the rear differential that basically powers the wheels at different speeds.
all wheel drive
the drive train has an engine in the front connected to a clutch or torque converter and later to a transaxle. motion it then connected to a propeller shaft which heads to a center differential. This differential enables the rear wheels to run at different speeds with the front tires. Then the shaft leads to the rear differential which allows the rear wheels to run at different speeds.this can be referred to full time four wheel drive. There is an all wheel drive that doesn’t have a centre differential and in this case the transaxle runs the rear wheels too i.e automatic all wheel drive.
Four wheel drive
In this drive train we have an engine in the front coupled to a torque convertor or a clutch which is later connected to a transmission. The transmission moves motion to a transfer case that drives both the rear and front tires via rear and front differentials to create varying speeds in both the front and back. this is part time 4 wheel drive. in full time four wheel drive we have to a center differential and it behaves like the all wheel drive.