Rear brake bleeding problem

I have a problem beeding the rear drum brakes on my 1998 4.0 2/4 ranger. I opened both rear bleed screws and got no fluid. I checked all connections going to the rear and they were not blocked. When I got to the (they call it) rear brake distributor? (the small block with five wires, attached to the fender) the fluid was going in but not comming out the next end. The auto book said I need a bleeder juntion tool? Please help.