Hi Richard, thanks for the beginning checks I will do tomorrow. Just for clarity, the engine stops with a sudden jolt when placed in gear. All shalfs truned freely with each step while rebuilding and installing. However, I did pull the valve body again just before installing trans in truck. Missed a ball bearing. I found it on the bench and located the exact spot it was missing from.
Could the 2-4 band be binding somehow? Is it possible the servo pin is jaming it, or binding the band? Looking for more ideas. I haven't been back to study the operation the servo and band yet.