We are proud to announce the highly-anticipated release of the Wavetrac differential to fit 2003-2011 Dodge Viper. The Wavetrac directly replaces the stock Hydra-Lok or Visco-Lok differential without the need to modify the stock stub axles. We supply new, forged chrome-moly stubshafts for a direct fit.Designed from a clean sheet, the new Wavetrac Differential brings current gear technology to the market. Internally, its gear tooth forms are optimized for strength and improved oil film retention over competitive designs. Our gear package is smaller, reducing overall mass, yet more durable. Attention was also paid to the side gear/axle interface, putting as much material thickness as possible in this critical area - most important when power levels get high. Made in USA