The rear differential is an important car part that transmits power from the transmission to the wheels while allowing them to rotate at different speeds. There are several types of differentials, including open differentials which allow wheel speed differences, locking differentials which force equal wheel speeds, and limited-slip differentials which act as open differentials normally but lock during turns. Common problems with differentials include leaks that cause lubricant loss and increased friction, as well as noise from friction between internal gears that should be addressed promptly to prevent damage.

1. How to Detect Problems with the Rear Differential

2. One of the important car
parts is the rear differential
which plays a big role in the
functioning of the car.

3. The main job of the rear differential is:
To slow down the rotational speed of the
transmission before it reaches the wheels
To transmit the power to the wheels while
allowing them to rotate at different speeds.

4. Functioning of differentials

5. The engine torque drives the
crankshaft, which is conveyed
to the drive shaft via
transmission and finally
reaches the wheels through
the rear differential.

6. It is made of gears and it
works to control the speed of
the wheel rotation.

7. While making a smooth turn,
the differential plays its part
by keeping the speeds of all
the wheels at different levels.

8. Modern cars come with built-
in rear differential
mechanisms like the limited
slip and locking rear
differentials.

9. Types of differentials

10. The different types of car differentials have been developed and designed to simply
allow for wheel speed difference are-
Open differential Locking differential
Limited-slip differential Torque-vectoring differential

11. Open differential

12. The open differential splits the
engine torque into two
outputs and allows the wheels
to rotate at different speeds.

13. When one tire loses traction,
then the opposing tire will
lose power as all the torque is
diverted to the wheel with no
traction.

14. Locking differential

15. In case of locking differential,
the connected wheels always
spin at the same speed as
equal torque is sent to all
wheels.

16. The only problem with this
type of differential is turning
the car can be very difficult.

17. Limited-slip
differential

18. It is the combination of open
and locking differentials, but
usually acts as an open
differential.

19. Under heavy acceleration and
hard cornering, the
differential automatically gets
locked when slipping occurs.

20. Torque-vectoring
differential

21. It is the most advanced and
complicated differential as it
uses additional gear trains,
accentuating the differences in
wheel speed as a vehicle
corner.

22. They modulate torque delivery
on demand resulting in better
dynamic driving experience
but lower fuel economy.

23. Common problems

24. Problems with the rear
differential, need to be
resolved at the earliest to
prevent further damages to
the entire drivetrain.

25. LEAK

26. Another problem which often
goes unnoticed is the leaking
of the lubricant.

27. When the lubricant level
drops down, then the friction
between the gears increases
and can lead to serious wear
and tear on the metals.

28. The reason for the weird loud
noise can also be the drop in
the level of the differential
lubricant due to leaks.

29. You must replenish the fluid
level to normal to prevent any
further damage as ignoring
the signs can cost a lot in
repairs of the rear differential.

30. NOISE

31. A common problem is noise,
resulting from the friction
between the internal gears of
the differential mechanism.

32. The noise is more of a
growling kind and becomes
louder while you take a turn.

33. Such noise needs to be
attended quickly, as the
problem can grow and finally
result in a complete
breakdown or major car repair.

34. So, do not let the noise
increase its volume and get the
differential checked out by a
car mechanic as early as
possible.

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