The Black Gold has been redesigned and is now called the Platinum Track Differential. This all new pre-load
design will withstand the punishments of today's horse power and technological advances. Unsurpassed
quality and performance will take you to the winner's circle. The newly designed Platinum Track will leave the competition in the dust. Developed by racers, for racers - it is specifically engineered to hold-up under the
most extreme conditions.
The Platinum Track is a torque bias gear driven differential, developed specifically for racing.
In a turn, a spool drives the front of the car straight toward the wall (a push). A locker provides some
differential action entering a turn, but as soon as power is applied, it locks up and is no better than a spool.
With the rear wheels locked together, the only way to make the car turn is with stagger. Stagger is at best a compromise - just ask anyone who has lost a race when their stagger went away.
The Platinum Track torque bias differential allows a car to turn easily into and roll freely through the turn
- it never locks up when power is applied. This is due to the gears used, not springs or clutches, to direct the
power to the wheel with the most traction.
The axles are connected to the ring gear by special spiral gears that are made in such a way they sense which
tire has the most resistance (traction) and smoothly delivers power to it. The gears operate on the same
principle as a steering pinion: you can turn the steering shaft easily, but not the steering arm. The tire with
traction instantaneously receives power in direct relation to the amount of traction. For instance, there is no
notchiness or "hunting" when accelerating offer a corner: the power goes down smoothly.
The axle gears have a preload on them. What does this mean to the racer? You can drive in deep, and not
have the loose entry feel of most open, or non-loaded differentials. The preload is factory set, however, it is
fully adjustable by the racer, if more of less is desired. The Platinum Track with the correct amount of preload
will let you roll through the center of the corner with greater speed and your exit speed will also be faster. All
of this is possible with less stagger, no more dragging excessive stagger down the straight away scrubbing off
speed and tires.
