Mike -- What year truck are you talking about?
I recently did the rears on my '49 1-ton with the Huck brakes and found them to be fairly easy and straightforward. The wheel cylinders can be found at Jim Carter's (see our Links Section) or American Classic (I think). You have to go to the specialty parts suppliers because the bigbox chain stores don't sell to "our kind" You should be able to get everything except for the shoes -- those you will have to find used/NOS or find a way to get them relined (if you can). You can't get new drums, either. So don't have your drums turned. That's just wasting good metal on parts they don't make anymore.
The adjusters just crank with a wrench ... It's not hard. It's actually easier to adjust the Huck brakes than the newer style, IMHO. But what do I know ... Usually other Stovebolters come here and take wrenches away from me. But if I can do it, you can! No need to go to the expense and trouble of upgrading already good braking systems. Then again, not that I'm an expert on brakes -- I still run a tractor trailer truck with wedge brakes (Gasp! Shriek!!). They haven't killed me yet
Do you have a shop manual? If not, get one! And read it! Saves asking a lot of (potentially) embarrassing questions ...
John
