They were used on '49 1/2 ton trucks. Yes they can be made, but they have very specific lengths and bends in them, and they are not identical to each other. If you get it wrong, you will not be happy when you align the front clip. It would be best to find an original set. I can help you with that if you send me a PM.
Carl

1952 5-window - return to "as built" condition | 1950 3100 with a 235 and a T-5 transmission