My take is no. The larger trucks 1-ton up have a higher horizontal piece below the rocker panel. It was made this way as to compensate the step up to the running board due to the larger wheels and height of the cab. I do know that the 1/2 and 3/4 ton are the same. Perhaps you can find a set for the smaller truck that are in good shape from the aft of the cab fwd, and cut the remaining off?
Dale