1966 A904 loses all gears overnight

Update. So the valve body is working I saw it operating with the pan off. Problem the front pump the oil is not circulating at all I un hooked trans lines and nothing came out after idling and in drive for about 10 minutes. And I do remember once I had a leak in a trans line and it shot out bat **** crazy. So I'm going to pull it out tomorrow. I will also check the converter and see if it's clogged inside or something. Thanks every one I do appreciate the advice. Also would I need to buy a new front pump or is it rebuildable