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Differentials & Service Parts

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Our all new USA made billet differentials use all gears; no plates or clutches, which means no clutches to wear out. These units have a very smooth operation.

Get the maximum traction with our torque sensing differentials; They can sense tire spin and transfer power to the tire with the most grip.

With today's horsepower and torque, you need a differential with the DPI strength and dependability. We use only the best gear material made from aircraft grade 9310 steel then have it heat treated to our specifications. We use four pinions per side. This differential is capable of handling horsepower up to +750.

WHAT IS THE PLATINUM TRACK AND WHAT DOES IT DO? The Patinum Track is torque bias gear driven differential, developed specifically for racing. It will allow you to go through the corners faster using less stagger.

WHAT IS WRONG WITH A SPOOL OR LOCKER? 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.

WHAT IS THE PLATINUM TRACK'S ADVANTAGE OVER A LOCKER? 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.

HOW DOES THE PLATINUM TRACK WORK? 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 resisteance (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 instananeously receives power in direct relation to the amount of traction. For instance, there is no notchiness or "hunting" when accelerating off a corner; the power goes down smoothly.

WHAT MAKES THE PLATINUM TRACK THE BEST HIDDEN SECRET IN THE MARKET? 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.  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.

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