The fenders on all '40 passenger cars are the same. The pickup fenders are different at the back part of the fender(less mounting holes and the flange is flat and not angled like the passenger cars). The 39 Deluxe and the '40 passenger cars have basically the same front fenders. There is a slight difference in the front curve on the '39 fender vs the '40. The '39 fender will fit the '40.