The Yukon Zip Locker for Dana 30 axles is an air-operated limited-slip solution that lets you switch from an open differential to full lockup when traction demands it. Built with a forged case and 8620 internals, it fits Dana Spicer 30 with 27-spline axles and is specified for 3.73 and higher ratios. It works with various air delivery systems and is assembled in the USA.
Yukon Gear Zip Locker For Dana 30 w/ 27 Spline Axles / 3.73+