Transmissions: Final Drive & Drive Shafts: Final drives procedures
Checking free play
 
The alignment relationship of the crown wheel and the pinion is very important. Misalignment will cause noisy operation and uneven wear.
 
Checking drive shaft joints
 
Make sure the vehicle is safely supported on a suitable vehicle hoist. The wheels need to be free to turn.
 
Checking manual transaxle/differential oil Selecting and using the correct type and grade of lubricant is critical. The wrong selection can lead to premature failure of the internal components.