Eaton only makes Detroit Lockers and Trutracs for Toyota axles, nothing in their e-locker AFAIK. ARB Air Lockers is really the best way to go for the front on IFS trucks, it's proven and is the best way to prevent blowing CV joints.
'91 Toyota Pickup
'09 Kawasaki KLR650
'12 Gunnar Rockhound 29
"To live is to suffer, to survive is to find some meaning in the suffering." -- Friedrich Nietzsche