Thanks Joe. With that info and the help from Harold, I now know what I need to do. Much appreciated.
I'm getting much closer to taking the truck out for it's maiden voyage, and thought it might be a good idea to get the brake working first.
b/t/w you have a beautiful 37!
Thanks again guys.

~ Victor
1941 3/4-Ton Pickup (in process). Read about it in the DITY Gallery
1955 Grumman Kurbside "Doughboy" 235/3 on tree w/ OD
1957 3100 - moved on
1959 C4500 Short Bus "Magic Bus" - moved on
1959 G3800 1 Ton Dually "Chief" - moved on
1958 C4400 Viking "Thor" ~ moved on to fellow Bolter