Powertrax LOCK-RIGHT Performace Locker User Manual
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Operation
The LOCK-RIGHT consists of two bi-directional over-run-
ning dog (toothed) clutches. Each one has a driving member (the
driver) and a driven member (the coupler, or in some models,
the existing side gear). Both clutches are rotated by the pinion
shaft(s) (or the spider). Each driver has special recesses cut in
one face that receive the shaft(s), and radial teeth cut in the op-
posite face (see Figure 1). Each driver mates with its coupler to
form a fully-locking combination, and the coupler also receives
the axle shaft to drive the wheels.
When your vehicle is moving straight ahead, both
wheels are rotating at the same speed and both clutches are
fully engaged (locked). When your vehicle begins to turn, the
outside wheel starts to rotate faster than the inside wheel. The
two clutches sense this difference in speed and allow the cou-
pler (or side gear) of the outside clutch to unlock so that the
wheel can rotate freely. It thus is “ground-driven” faster as
the vehicle is turning; power continues to be applied to the slow-
er (inside) wheel. As the vehicle straightens out the wheels again
rotate at the same speed, and the outside clutch re-engages.
This differentiating action occurs automatically for right and left
turns and in both the forward and reverse directions.
Features
Its design is simple and rugged. It is an automatic 100%
full-locking differential that is “all-gears”—no belleville washers,
clutch packs or cone clutches to break or wear out. The LOCK-
RIGHT simply replaces many of the parts inside the standard dif-
ferential case.
It uses your own stock differential case, bearings, pin-
ion shaft(s) or spider and thrust washers (and also the side gears
in some models) rather than parts that are all specially made and
therefore more expensive.
It uses stainless steel springs for excellent resistance to
high temperatures and fatigue.