Yukon Dropout Assembly for Ford 9 Diff w/Grizzly Locker 31 Spline 4.86 Ratio

Yukon Dropout Assembly for Ford 9 Diff w/Grizzly Locker 31 Spline 4.86 Ratio. Yukon dropout assemblies are built by expert Yukon techs come fully shimmed backlashed to spec and ready to install. This unit is upgraded with a Yukon Grizzly Locker for maximum performance and reliability.. Yukon dropout assemblies are built by expert Yukon technicians and come complete properly shimmed and backlashed to spec. All you do is install the third member into your diff housing bolt on the diff cover add fluid and roll. This unit features a nodular iron case which improves rigidity and power handling reducing deflection for consistent gear contact and a long service life. This assembly is upgraded with a Yukon Grizzly Locker for maximum traction and performance.