One of the known shortcomings of a typical torque biasing differential is its loss of drive under zero or near-zero torque conditions. The WaveTrac is the latest and greatest in differentials from Moser that is designed to help you over come those “one wheel peel” problems.  Moser has recently expanded their applications to also include Ford 8.8 and 9-inch 31-spline applications.

The WaveTrac uses converging / diverging wave profiles that are placed on one side gear and its mating preload hub. As the two side gears rotate relative to each other, each wave surface climbs the other, causing them to move apart. This imparts an increased normal force through the side gears, increasing the bias ratio as a function of load. This increase occurs automatically only when conditions find it necessary, and it ‘reverts’ back to its nominal bias ratio quickly and seamlessly, maintaining optimal drive-ability and performance at all times. It’s like having two differentials in one: you get the benefit of a higher bias ratio when needed without detriment to the car’s handling.

• No loss of traction under low/partial throttle applications
• Current GM 12-bolt and Ford 8.8 and 9-inch applications
• Benefit of a higher bias ratio when needed without detriment to the car’s handling