Differential Full Spool Ford 9in 31 Spline

Built for Ford 9-inch rearends with 31-spline axles, this full spool is a key part for drag racers and off-road drivers who want all the power going to both wheels at once. It locks the two sides together so there is no slip, even under the hardest driving.

Heavy-duty steel stands up to the high torque and stress that come with aggressive use. By doing away with diff action, it helps the car put power down more effectively, which can improve how it accelerates and handles. For anyone chasing an edge on the strip or trail, this spool delivers.

It fits Ford 9-inch rearends without any need for changes to the housing, making install a breeze for racers and off-road fans. Swap it in for the factory unit and get better power transfer and control, a must-have for any performance build.