not quite right on the rad mount Lonnie, the 55-57 core support mounts further back with some shrouding between it and the grille/gravel pan - that's why the 55-57 has the flat areas on the inner fenders just behind the rad - there's holes there where the support mounts, and a reinforcing plate attached to the wheel side of the inner [that always makes them rot there] .... in 58 they went to a factory fan shroud, similar to the cars, cheaper to make, the inners last better too cuz no holes or plate ... those setups to move the rad/support back on the 55-57 [shown in the assembly manual, which is actually from '55] are scarce to non-existant, a fan shroud is the realistic solution
Bill