A904 has reverse no foward

...............Well, I don't know if I can help u, but the same thing happened to a friend of mine back in 1981.......changed a lot of different parts including a new valve body, still no forward gears, I never knew anything about trannys then, but I suspect that maybe the over running clutch was assembled wrong...........first thing I would do is check the pressures from the ports on the outside of the tranny, did it get air checked b4 the valve body went in...........kim.....