The Yukon Trac-Loc limited-slip differential for 9" Ford housings with 31-spline axles delivers smooth yet aggressive traction to improve vehicle control across varied terrain. It pairs positraction capability with a rebuildable design for long service life. Built with a high-strength nodular case, forged 4320 chromoly spider gears, composite clutches, a 4-pinion layout and four preload springs for aggressive engagement and durability.
Yukon Gear Trac Loc For Ford 9in With 31 Spline Axles. Aggressive Design