A Front Drive Shaft driveshaft is accountable for transferring engine vitality from the transmission to the differential and onto the drive wheels. A driveshaft could be a couple of pieces with a middle support bearing in the middle. There happen to be universal joints at either end of the driveshaft which act as flex joints that allow the differential to go upward when the car contacts a bump. A front side driveshaft yoke is employed to connect to the tranny while a backside driveshaft flange is employed to connect to the differential. On elderly models the rear U joint bolts directly to the differential without utilizing a rear flange. On front wheel drive cars there are two travel shafts which are known as CV axles.
Driveshaft themselves have hardly any problems with the exception of becoming bent if they are exposed to an obstruction. However the U joints could cause complications which are part of the driveshaft such as for example chirping and clucking when the car is moving or placed into gear.
Something you should know that might not exactly be considered is when a driveshaft is taken out the automobile will no longer be in park. The automobile will roll because the link between your drive wheels and tranny is removed. You will need to raise the car up using a floor jack and jackstays. Wear protective eyewear and gloves before you begin.
Mark the driveshaft orientation before you begin. This will help gain the driveshaft to its classic job on the differential that may help avoid driveline vibrations after the driveshaft is reinstalled.
Utilizing a plastic hammer softly shock the driveshaft loose via the differential flange simply by striking the trunk yoke (U joint install). At this stage the back 50 % of the shaft will become free so keep hold of it. On some vehicles there will be a centre support which should be undone by eliminating the two centre support installation bolts. When removing an older vehicle drive shaft use electric tape to wrap around the u joint cups hence they don’t fall off and launch the 
glass needle bearings.
On front wheel drive cars the driveshaft isn’t used. The transmitting and differential is mixed into one device called a transaxle.
All shafts are reassembled with fresh universal joints and CV centering kits with grease fittings and are then completely greased with the correct lubricant. All shafts are straightened and computer balanced and tested to closer tolerances than OEM specs.
The drive shaft is the part on the lower proper side of the picture. The additional end of it would be connected to the transmission.