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.
T's Advanced Synthetics
Greg and Marcy Thurman
Your Nationwide
AMSOIL
Authorized Independent
Dealer
Nationwide US Warehouses,
Canada and Palm Harbor, FL
727-798-8552
E-Mail:
greg@tsadvancedsynthetics.com
If you
experience problems or have questions or comments about
our website please email us at
greg@tsadvancedsynthetics.com
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