Quick view Eaton Eaton ELocker4 Differential 36 Spline 36-Spline Toyota Tundra 10.5in - 14232-1 Compare $1,865.95 $1,753.99 The Eaton ELocker is an electronic, selectable differential designed for drivers that need traction on-demand. At the flip of a dash switch, drivers can go from open to 100-percent locked. A second flip of the switch deactivates the unit to resume normal... Add to Cart Add to Cart