Yukon Gear Trac Loc Positraction / Ford 8.8in / 34 Spline / 2015+ Mustang

If you're working on a 2015 through 2019 Ford Mustang and looking to upgrade your differential, this Yukon Trac Loc Positraction case is a solid option. This unit is specifically built for the Ford 8.8-inch Independent Rear Suspension (IRS) found in those Mustangs, and it's designed to handle 34-spline axles. A positraction differential, often called a limited-slip or posi, helps send power to both rear wheels when you're accelerating, improving traction compared to an open differential, especially when one wheel might lose grip.

Yukon Gear & Axle casts and machines these carrier cases to tight specifications, aiming for both strength and precise tolerances. This means you get a well-built component that should provide reliable service life for your Mustang's drivetrain. It's designed to work with 3.31 and numerically lower gear ratios, so make sure that matches your current setup or your planned build. Installing a new differential case is a significant job that requires specialized tools and knowledge, often involving setting gear patterns and backlash correctly.

This Yukon Trac Loc case is a key part of rebuilding or upgrading your Mustang's rear end. It's built for the specific Ford 8.8 IRS application and is a direct replacement for the factory positraction carrier if you're looking for a stronger unit, or an upgrade if your car came with an open differential. Remember that this is just the carrier case; you'll need to source the appropriate ring and pinion gears, bearings, and installation kit separately to complete the job.