The Yukon Trac Loc spring is specified for Ford 8.8" differentials with 28-spline axles and provides the spring components needed to install a Trac-Lok limited-slip carrier. Yukon’s spring kit is listed for Ford 8.8" 28-spline applications only and supplies the hardware required to convert or service those differentials with Trac-Lok type carriers.
Yukon Gear Trao Loc Spring For Ford 8.8in / 28 Spline