Emphasis block forward wheels to interfere with car moving. Lift a back part of the car and establish it on support. Lower the lever of the parking brake and establish the gear shifting lever in neutral situation.
From under the car examine the driveshaft on lack of dents and cracks. In the presence of damages replace the driveshaft.
Check absence of leaks in junctions of forward and back parts of the driveshaft with a transmission and with reverse main gear. Existence of leaks in a forward part indicates wear or defect of a cuff of a transmission, and leaks in a back part testify to failure of a cuff of reverse main gear.
While the assistant rotates a back wheel, check a condition of universal hinges which should rotate smoothly, without jammings and seen люфта. If the basic bearing of the driveshaft publishes noise, means, it is worn-out or damaged and it is necessary to replace it. Also check a condition of a rubber support of the bearing on absence of stratification and cracks.
Check a condition of universal hinges at motionless kardanny to a shaft, having grasped it two hands and trying to turn in one and other parties. Any люфт points to wear of hinges, in this case it is necessary to replace a lobby or a back part of the driveshaft.
At last, check an inhaling of bolts of fastening of the driveshaft.