Hy jrdamien, here are some pics of a booster/dual master cylinder installed in a 1952 one ton I did a few years ago, I had to trim a corner off of the parking brake band but otherwise close but it did clear, hope these help.

http://s120.photobucket.com/user/pintos4me/library/truck%20pictures%20march%2006?sort=3&page=1