Yukon Trac-Loc for Ford 9" with 28-spline axles offers an aggressive limited-slip design with four preload springs and a four-pinion layout for strong torque biasing. The rebuildable Trac-Loc fits 9" Ford housings with 28 splines and is specified for applications where a more assertive traction response is needed across the supported gear ratios.
Yukon Gear Trac Loc For Ford 9in With 28 Spline Axles. Aggressive Design