Did you figure out the drums hard to turn problem yet? I run into the same problem when I either put new shoes or had the originals relined on my 37 which are the same style as a 50 (its been over twenty years) the parts store that I dealt with rearched the shoes so they would fit the drums better. I dont know if there is anyone now who could do that and after drving the truck I realized that if I turned the drums as they are out of round that the shoes would of probably fit better. I would check the drums and have them turned if the problem still exists.
