A driveshaft is in charge of transferring engine electric power from the transmission to the differential and onto the drive wheels. A driveshaft can be one or two pieces with a middle support bearing in the centre. There are universal joints at either end of the driveshaft which become flex joints that permit the differential to go upward when the automobile contacts a bump. A front driveshaft yoke is utilized to hook up to the transmitting while a backside driveshaft flange is used to connect to the differential. On elderly models the trunk U joint bolts directly to the differential without utilizing a rear flange. On the front wheel drive autos there are two travel shafts which are known as CV axles.
Driveshaft themselves have very little problems with the exception of becoming bent if they are exposed to an obstruction. On the other hand the U joints can cause complications which are part of the driveshaft such as chirping and clucking when the car is moving or put into gear.
Something you need to know that may well not be thought of is whenever a driveshaft is removed the automobile will no longer maintain park. The car will roll since the link between your drive wheels and transmission is eliminated. You will have to raise the car up using a floor jack and jackstays. Have on Front Drive Shaft protective eyewear and gloves before you begin.
Mark the driveshaft orientation before you begin. This will help 
gain the driveshaft to its classic location on the differential which can help avoid driveline vibrations once the driveshaft is reinstalled.
Using a plastic hammer delicately shock the driveshaft loose coming from the differential flange by striking the rear yoke (U joint install). At this stage the back half of the shaft will end up being free so hang onto it. On some autos you will have a centre support which must be undone by taking away the two center support installation bolts. When removing a mature vehicle drive shaft employ electrical tape to wrap around the u joint cups hence they don’t really fall off and discharge the glass needle bearings.
On front wheel travel cars the driveshaft is not used. The tranny and differential is merged into one product called a transaxle.
All shafts are reassembled with fresh universal joints and CV centering kits with grease fittings and so are then completely greased with the proper lubricant. All shafts are straightened and computer balanced and examined to closer tolerances than OEM requirements.
The drive shaft may be the part on the lower correct side of the picture. The additional end of it would be connected to the transmission.