HI JOhn you won,t have any pwr to the frt wheels if the Tod is not activated as bob stated , even though you have the frt hubs locked , all they are doing is locking the axles to the wheels , but the axel inter lock and the Tod has to send power to them from the signal from the trans fer case ,if everything is working correctly Tod on and in your case hubs locked, when the rear wheels start to spin it will automatically apply pwr to the frt in percentages UP TO 50 % of rear tire slip the more they spin the faster the frt will lock and apply pwr to the wheels untill the rears gain traction and then the frts start to slow down application, ,how ever like bob mentioned when you shift down into low range , it is now a mechanical lockup with the fronts turning the same speed as the rears with a 50/50 torque split , with lsd in the bacK and arb in the frt and in low range that thing should just about climb a tree JERRY