Missing 3rd on 904 trans

Another update. After cleaning everything out and putting it back together I'm back exactly where I started. I have reverse, neutral, first and second but no third. I remembered I still had the 904 trans that came on the slant six. I pulled the valve body out of that, gave it a quick one over and cleaning and put that in with the same results. The only things left I can think of that I'll tinker with next weekend it the linkage is that far out of wack or the band torque is off. I'm getting close to just accepting I'll only ever have 2 forward gears in this car....