Just rebuilt my trans, replaced all the wear parts, converter and electrics. Did a few test drives up the road, everything worked fine, shifted good. Went on a short drive (2 miles) lost all foward gears but still have reverse. Sounds like it could be the rear clutch but could something be wrong with the electrical servos in the valve body. I pulled the pan, fluids clean, nothing in the pan. About six quarts drained out. I'll check the front-rear clutch with air tonite to see if they still work (did this before installing VB, ok then).
What do the experts think and what would they check before pulling trans back out.