Yukon Trac-Loc for 9" Ford housings with 28-spline axles in a street design uses two preload springs and a four-pinion arrangement to deliver smoother, everyday limited-slip behavior. Rebuildable and matched to 9" Ford 28-spline setups, this option is intended for drivers wanting refined traction assistance without the aggressive engagement of the heavy-preload variant.
Yukon Gear Tracloc For Ford 9in With 28 Spline Axles. Street Design