PRODUCT DESCRIPTION
When making a turn, the outer wheels of a vehicle
must travel faster than the inner wheels. It is up to the differential
to act as a balance arm, establishing constant equilibrium of
torques and forces between the left-hand and right-hand driven
wheels. In standard (or open) differentials, power is directed
to the wheel offering the least resistance. This works well when
making a turn, but in a situation where one wheel is lifted off
the ground, it causes the suspended wheel to turn while the other
remains motionless.
Limited-slip (or positraction) and locking differentials
are traction-increasing devices. Locking differentials transfer
all available torque to both wheels. The teeth of the spider assembly
engage with those on the locker clutch, causing both axle shafts
to operate as one. Locking differentials don ’t allow one drive
wheel to spin while the other remains stationary. Instead, they
keep both wheels in drive mode, but unlock to permit different
wheel speeds when turning. The engaging and disengaging of the
teeth on automatic locking differentials often causes a banging
and clunking sound. Manual locking differentials usually use an
electric motor or vacuum diaphragm to engage the locker, reducing
this noise.
Limited-slip differentials allow different wheel
speeds when turning, but when one wheel loses traction, greater
torque is transferred to the wheel offering more resistance. Limited-slip
differentials make use of friction between clutch plates, as opposed
to the meshing teeth employed by locking differentials. Transferring
less torque per side, limited-slip differentials are generally
smoother and quieter than locking differentials, but still sometimes
“chatter ” when transferring torque to the wheel with traction.
In some differential applications, a friction
modifier additive is necessary to reduce chatter. AMSOIL Slip-Lock
Differential Additive is formulated with advanced friction modifiers
and is designed to eliminate gear-housing chatter in cars, trucks
and SUVs equipped with limited-slip, positraction and locking
differentials. It also reduces the banging and clunking associated
with automatic locking differentials.
AMSOIL Slip-Lock Differential Additive is formulated
for use with both synthetic and petroleum gear lubricants and
safely replaces manufacturer recommended friction modifiers. Its
convenient flip-top dispenser provides quick and easy application
to the gear housing. One four-ounce bottle of Slip-Lock treats
differential capacities of two to four quarts. It is not for use
in automatic transmissions or other applications requiring ATF.
NOTE: AMSOIL Synthetic Gear Lubes do not require
the use of this additive. However , not all differentials respond
the same and if chatter is noticed, the addition of AMSOIL Slip-Lock
will eliminate it. For chattering differentials not running AMSOIL
Gear Lube, this product is an excellent solution to the problem.
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