Yukon Gear Trac-Loc For Ford 8in With 31 Spline Axles. Aggressive Design

If you're looking to improve traction for your Ford 8-inch rear end, especially when you're heading off-road or need better grip in challenging conditions, this Yukon Gear Trac-Loc limited slip differential is a solid choice. It's built for a wide range of Ford vehicles from the 1960s through the early 1980s, including popular models like the Mustang, Bronco, and F-Series trucks, as long as they have the 8-inch rear axle with 31-spline axles. This unit replaces your open differential, sending power to both rear wheels when traction is uneven, which is crucial for getting unstuck or maintaining control on slippery surfaces.

What sets this Trac-Loc apart is its aggressive design, featuring four preload springs and a four-pinion gear setup. This means it engages quickly and firmly, providing strong limited-slip action that's ideal for performance applications. The case is made from a high-strength nodular iron, and the internal spider gears are forged chromoly steel, making them incredibly durable. Yukon also uses composite clutches, which are known for their smooth engagement and long life, and the entire unit is designed to be fully rebuildable, meaning you can service it down the road. It's assembled in the USA and backed by extensive product testing.

Keep in mind that this is an aggressive unit, and some chatter may be present during normal operation, especially during low-speed turns. You'll also need to purchase Trac-Loc bolts separately. This differential is designed to work with all gear ratios for the Ford 8-inch axle with 31-spline axles.