OK I'm a little stumped. I have a 2005 Expedition and my transmission lost overdrive so I checked the o/d servo and ended up replacing it. After replacing the o/d servo I lost all forward gears. So I pulled the transmission and did a rebuild. All new clutches and steels new seals and gaskets new solenoids. Now when I start the truck and cycle it through the gears I can feel it go into reverse and I can feel it go into drive. But when I take it out and road test it the o/d light starts flashing and it acts like it isnt shifting. Before it lost forward gears it shifted perfectly. Any ideas would be greatly appreciated.