Wavetrac Differential. O2J Transmission Golf/Jetta MKIV TDI/1.8T/2.0/VR6 99-04 , Beetle 98-03. The

Wavetrac Differential. O2J Transmission Golf/Jetta MKIV TDI/1.8T/2.0/VR6 99-04 ,  Beetle 98-03. The
    Code: 10309180WK
    Price: $755.25
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    Wavetrac Differential.
    Fits VW Mk4 5 speed manual (bolt in axle flanges):
    MK4 GTI/Golf/Jetta/Beetle 2.0L/12V VR6/TDI/1.8/1.8T/V5:
    MK3 Jetta TDI 5-speed
    The 180WK 02J will fit until 2004 (114mm ring gear inner diameter)

    The Wavetrac® differential uses a patent pending design to improve grip in low traction conditions. Precisely engineered, converging / diverging wave profiles 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 drivability 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.
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