Yes, 49-53 (If you want to use your 51 gas tank).
How close do you want the cab to match a 51 cab?
There were some minor, almost unnoticeable, cab differences between 49-53. There were also some slight differences in screw-on interior parts, buy you would use your year's interior screw-on parts.
A little nit-picking would keep you away from 49-50 cabs (left side-cowl ventilator air scoop). There was also a different seam in the fire-wall that changed around 1948/49 (I dimly recall). The width of the seat changed in 1950 (I do not know if the seat base changed).
How the windlace attached to the cab-door opening changed in 1949, as did the mode-of-attachment of roof-panel bows.
Most of the above difference (except for the side vent) would not be noticed.
