I searched the link because I will be working on a one ton in the future - similar to you assembling parts and pieces. The experts can correct if I am wrong - and this thread may need to be moved to the One Ton Forum perhaps to get a better response - = but here goes:
If the 1 ton fenders, hood, hood latch panel, and grille surround are the same as 1/2 and 3/4 ton models - then the radiator core support would be consistent with these models...
My understanding is that the 1/2 and 3/4 ton truck front clips interchange with the 1 ton models ... all being the same.
Its when the models jump up to 1-1/2 ton and larger trucks the hood, grille, and fenders / front clip change to a larger size. I do not know if a different radiator core support would be need for 1 1/2 ton and larger trucks...but you aren't asking about these models.
Last edited by tom moore; 05/03/2022 12:41 AM.