On my '48 and '53 I went with 15" rally wheels and also removed 2 leafs from the front and 3 leafs from the rear. Lowered it to where it took the space between the fenders and the tires, made it pretty even and rides about the same. If you are like me when I removed the springs I had to replace the shackles and also the alignment pin in the springs, most of the time its just the allignment pin. while you are under there check all that stuff out! Make sure the truck is road ready and safe for ya.
Good luck!