I built the 46RE in my Ram a few months ago and installed a new torque converter (stock reman). Everything was fine until 1 day last week. The truck won't move in forward or reverse. I can turn the engine off for 30 seconds, restart and it will move for a brief time. I repeated this procedure a couple of times to get it to my shop.

The fluid looks perfect and doesn't smell burned. Nothing in the pan either. No ujoint or driveshaft issues. I am thinking valve body or torque converter? I am leaning towards converter since it will move after everything stops spinning and is restarted.

Which would you replace first?