I ordered a new 4 core radiator for my '72 FJ40 the other day from Arrowhead Radiator for $165. A lady from there called me today and told me that even though it had showed in stock, they are not and that she couldn't find me one from any of their sources. She said the closest thing was one for a '78 and that wouldn't work for me. There's obviously got to be differences in them, but would the one for the '78 work fine in my stock '72?