On my 61 tr3 I did something wrong or perhaps the rear main was going to leak anyway, but does anyone know if the leak with get smaller after the engine breaks in? It has about 700 miles on it and the leak is three timesthe size of my 58. I understand how an oil drip can look huge on a concrete floor, but I do wish I would of tried one of those seal improvement deals, but when I did this engine I only remember hearing stories about rear main improvement problems. I think I heard Randall suggest once that if the oil is a little low the leak often slows down.