As you look for a front clip remember that the 55/56 fenders are the same and the 57 are different (talking about the 4000 & 6000 Series trucks). Chevrolet moved the front axle in 57, 2-1/2" forward so they made the wheel opening bigger on the 57 fenders. The 55/56 wheel openings are about 39" wide at the bottom and the 57 are almost 42".
The 55-57 4000 & 6000 Series Grills are the same.
The 56/57 8000 & 10000 Fenders and Grilles are the same.
The Hoods and Inner Fenders are the same for ALL of the trucks 1/2 thru 2-1/2 ton 55-57 (only difference in hoods are the 2 ribs for 57, but they are all interchangeable).
Mike B
