It works, but it even works better with a detroit tru-trac. With some brake, it will force both wheels to turn together like a locker. The TT sends power to both wheels, but more to the wheel with the most traction. A little brake presure makes the TT send power to both wheels in an allmost 50/50 split. I run the TT in both ends of my yj so I can have good highway manors and with a little brake, locker like traction if I get a wheel lifted off road.
1987 wrangler, 258 I-6, 5-speed.
2007 liberty sport 4X4, automatic
2009 ford ranger 4x4 FX4 OFF/ROAD, 5-speed