A driveshaft is in charge of transferring engine power from the transmission to the differential and onto the travel wheels. A driveshaft can be one or two pieces with a middle support bearing in the middle. There will be universal joints at either end of the driveshaft which act as flex joints that permit the differential to move upward when the automobile contacts a bump. A entrance driveshaft yoke is utilized to connect to the transmitting while a rear driveshaft flange is utilized to hook up to the differential. On elderly models the rear U joint bolts right to the differential without by using a rear flange. On front wheel drive automobiles there are two travel shafts which are named CV axles.
Driveshaft themselves have very little issues with the exception of becoming bent if they are exposed to an obstruction. On the other hand the U joints could cause complications which are a part of the driveshaft such as chirping and clucking when the automobile is moving or put into gear.
Something you need to understand that may well not be considered is whenever a driveshaft is taken off the automobile will no longer be in park. The automobile will roll as the link between your drive wheels and transmitting is taken out. You will need to raise the car up using a flooring jack and jackstays. Have on protective eyewear and gloves before starting.
Mark the driveshaft orientation before beginning. This will help gain the driveshaft to its first location on the differential that may help avoid driveline vibrations after the driveshaft is reinstalled.
Using a plastic hammer lightly shock the driveshaft loose via the differential flange simply by striking the rear yoke (U joint attach). At this stage the back 50 percent of the shaft will end up being free so hang onto it. On some autos you will see a center support which should be Front Drive Shaft undone by taking away the two middle support installation bolts. When removing a mature vehicle drive shaft employ electric tape to wrap around the u joint cups hence they don’t really fall off and discharge the cup needle bearings.
On front wheel drive cars the driveshaft is not used. The tranny and differential is combined into one product 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 proper lubricant. All shafts will be straightened and computer balanced and analyzed to closer tolerances than OEM requirements.
The drive shaft is the part on the low right side of the picture. The additional end of it might be connected to the transmission.